How do I put these problems in my calculator?

izic

New member
Joined
Feb 28, 2010
Messages
1
I was wondering if anyone could show me how to put these problems into my calculator?

1. Find the complementary and supplementary angles of:
30°48'34"

2. Find the measure (in degrees, not equal to the given measure) of the least positive angle that is coterminal with A using:
A = 276°

3. Find the next two positive and negative angles that are coterminal with the given quadrantal angle using:
A = -270°

4. Give an expression that generates all angles coterminal with a given angle using:
-60°

5.Find the signs of six trigonometric functions values for the given angle.
60°
is sin 61° positive or negative?
is cos 61° positive or negative?
is tan 61° positive or negative?
is csc 61° positive or negative?
is sec 61° positive or negative?
is cot 61° positive or negative?

5. Decide whether the statement is possible or impossible.
secØ = 2 (the circle after sec is supposed to have a line coming through it from the middle not from the top)

6. Find the exact value of cosØ, given that sinØ = -15/7 and Ø is in quadrant IV.

7. Given that tanØ= - 4/3 and that Ø is in quad IV:
what is: sinØ, cosØ, cscØ, secØ, cotØ,
 
?
If you're looking for a calculator that will accept these exercises as input and then complete them for you, I hope you have big bucks.

What kind of calculator do you have?

What specifically are you trying to get your calculator to do?
 
Re:

mmm4444bot said:
?
If you're looking for a calculator that will accept these exercises as input and then complete them for you, I hope you have big bucks.

What kind of calculator do you have?

What specifically are you trying to get your calculator to do?

I suspect - do the homework, without lifting a finger!!
 
izic said:
I was wondering if anyone could show me how to put these problems into my calculator?

1. Find the complementary and supplementary angles of:
30°48'34"

2. Find the measure (in degrees, not equal to the given measure) of the least positive angle that is coterminal with A using:
A = 276°

3. Find the next two positive and negative angles that are coterminal with the given quadrantal angle using:
A = -270°

4. Give an expression that generates all angles coterminal with a given angle using:
-60°

5.Find the signs of six trigonometric functions values for the given angle.
60°
is sin 61° positive or negative?
is cos 61° positive or negative?
is tan 61° positive or negative?
is csc 61° positive or negative?
is sec 61° positive or negative?
is cot 61° positive or negative?

5. Decide whether the statement is possible or impossible.
secØ = 2 (the circle after sec is supposed to have a line coming through it from the middle not from the top)

6. Find the exact value of cosØ, given that sinØ = -15/7 and Ø is in quadrant IV.

7. Given that tanØ= - 4/3 and that Ø is in quad IV:
what is: sinØ, cosØ, cscØ, secØ, cotØ,

You don't need a calculator for ANY of these problems!

For example, in your problem #1, you're asked for the complement and the supplement of an angle whose measure is given. Complementary angles must add up to 90[sup:3s84hzbv]o[/sup:3s84hzbv].....to find the complement of a given angle, subtract that angle's measure from 90[sup:3s84hzbv]o[/sup:3s84hzbv]. And supplementary angles must add up to 180[sup:3s84hzbv]o[/sup:3s84hzbv]. To find the supplement of a given angle, subtract that angle's measure from 180[sup:3s84hzbv]o[/sup:3s84hzbv]. If the given angle has a measure expressed in degrees, minutes, and seconds (as in your problem), you'll probably want to write 90[sup:3s84hzbv]o[/sup:3s84hzbv] as 89[sup:3s84hzbv]o[/sup:3s84hzbv] 59' 60", and 180[sup:3s84hzbv]o[/sup:3s84hzbv] as 179[sup:3s84hzbv]o[/sup:3s84hzbv] 59' 60".

For problems 2, 3 and 4, I suggest you review what your textbook says about "co-terminal" angles. To find an angle that is co-terminal with any given angle, you can ADD or SUBTRACT a multiple of 360[sup:3s84hzbv]o[/sup:3s84hzbv]. For example, if you are looking for the smallest positive angle that is co-terminal with 123[sup:3s84hzbv]o[/sup:3s84hzbv], ADD 360[sup:3s84hzbv]o[/sup:3s84hzbv] to 123[sup:3s84hzbv]o[/sup:3s84hzbv]: 123[sup:3s84hzbv]o[/sup:3s84hzbv] + 360[sup:3s84hzbv]o[/sup:3s84hzbv] = 483[sup:3s84hzbv]o[/sup:3s84hzbv]. 483[sup:3s84hzbv]o[/sup:3s84hzbv] is the smallest positive angle co-terminal with 123[sup:3s84hzbv]o[/sup:3s84hzbv]. If you're looking for a negative angle co-terminal with 123[sup:3s84hzbv]o[/sup:3s84hzbv], you can SUBTRACT 360[sup:3s84hzbv]o[/sup:3s84hzbv]

For problem #5, you're expected to know which functions are positive and which are negative in each quadrant. I haven't seen a calculator that will tell you this, but it is EASY to determine for yourself, provided you know the definitions of the functions in terms of x, y and r.

For your SECOND problem #5, you need to know that sec @ = 1/cos @. So, if sec @ = 2, cos @ = 1/2. Is that possible?

For problems #6 you might want to check to see if you've typed it correctly.....

For problem #7, you're told that tan @ = -4/3.....and that @ is in quadrant 4. You're expected to know that tan @ = y/x....and that in quadrant 4, x is positive and y is negative. Draw a right triangle in quadrant 4, with legs of x and y. Use the Pythagorean Theorem to find the length of the hypotenuse. Then, use the definitions for the six trig functions in terms of x, y and r to get the answers to your question.

It kind of sounds to me like you're hoping a calculator will "rescue" you when you haven't learned what you've been expected to learn. Probably ain't gonna happen.
 
Top