Im stumped !

Question

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806

1

Im stumped !

When given the trig equation:csc² x+sec² x=csc²xsec²x

1.) state restrictions on x

2.)Rewrite the two sides of this identity using only sine and cosine functions.

3.)complete the proof of this identity using the results of the previous bullet

Can someone show me how as well as explain because i dont understand trig identites

Guest Jun 5, 2014

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Best Answer

The following graph should help with part 1). (Hint: you can't have values of x that make the functions infinite).

trigfns

For part 2) note that csc = 1/sin and sec = 1/cos

For part 3) multiply through by sin²x*cos²x (and remember that sin² + cos² = 1)

Alan Jun 6, 2014

Alan · Answer 1 · 2014-06-06T08:00:23

The following graph should help with part 1). (Hint: you can't have values of x that make the functions infinite).

trigfns

For part 2) note that csc = 1/sin and sec = 1/cos

For part 3) multiply through by sin²x*cos²x (and remember that sin² + cos² = 1)