Question

-sin^2x+cosx^2=?

Answer 1

HI!

Answer 2

what are you trying to do with that?

Answer 3

Simplify as much as possible

Answer 4

there is no such mathematical operation as simplify

Answer 5

"simplify" using identities, etc.

Answer 6

you can add, subtract, multiply, divide, write in simplest radical form, combine like terms, distribute, etc

Answer 7

you could rewrite it all in terms of sine, or in terms of cosine, but in no way would it be any "simpler"

Answer 8

if it was
\[\sin^2(x)+\cos^2(x)\] then it would be equal to 1, but it is not, so there is nothing you can do with it

Answer 9

"Simplify the expression"
\[\frac{ \sin(-x) }{ cscx }+\frac{ \cos(-x) }{ secx }\]
The original problem.

Answer 10

Is -sin^2x+cosx^2 correct?

Answer 11

that is correct yes

Answer 12

thank yoou

Answer 13

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