SOLUTION: Which of the following confunctions is/are true? A)sin(90°-x)=Cos(x) B)cos(90°-x)=sin(x) C)tan(90°-x)==cot(x) D) all of the above

Algebra.Com
Question 1089334: Which of the following confunctions is/are true?
A)sin(90°-x)=Cos(x)
B)cos(90°-x)=sin(x)
C)tan(90°-x)==cot(x)
D) all of the above
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.
Which of the following confunctions is/are true? 

A) sin(90°-x)=Cos(x)

B) cos(90°-x)=sin(x)

C) tan(90°-x)==cot(x)

D) all of the above        <<<---===


RELATED QUESTIONS

Which of the following confunctions is/are true? A)sin(90°-x)=Cos(x)... (answered by ikleyn)
if x+y=90 degrees which of the following is true? sin x = sin y tan x = tan y sin x (answered by solver91311)
Please help me solve this equation: Which of the following is a valid trigonometric... (answered by lwsshak3)
The inequality sin x >(or equal to) cos x is true for all values of x in the interval... (answered by stanbon)
Simplify the following: sin (90° + x) sin (180° + x) + cos (90° + x) cos (180° –... (answered by robertb)
If an angle x measured counter clockwise from the positive x axis terminates in the third (answered by Alan3354)
If an angle x measured counter clockwise from the positive x axis terminates in the third (answered by solver91311)
simplify the following to a single trigonometry term 1. cos 10 . cos 340 - sin 190 .... (answered by MaxWong)
which of the following is equal to csc(x) A)1/sin(x) B)1/cos(x) C)1/tan(x)... (answered by Alan3354)