Question

Which equation is not true for all values of 0?
a. csc 0 = sec 0 / tan 0 cos 0
b. sin ^2 0+cos^2 0 = sec^2 0 (1-sin^2 0)
c. cot 0 - tan 0 = cos 0 csc 0 - sin 0 sec 0
d. sin ^2 0 + cos ^2 0 + tan ^2 0 = sec^2 0

Answer 1

@aum :)

Answer 2

Is it zero or the Greek letter phi \(\phi\) or \(\theta\)?

Answer 3

The one with a line through it. Sorry, I forgot to add that.

Answer 4

It is phi.

Answer 5

Is the first choice \[
\csc(\phi) = \frac{\sec(\phi)}{\tan(\phi)\cos(\phi)}~~\text{or } \\
\csc(\phi) = \frac{\sec(\phi)}{\tan(\phi)}\cos(\phi)
\]

Answer 6

follow me savanah