Question
Verify the Identity:
sin(x+π)/cos(x+3π/2) =tan^2x-sec^2x
I've done:
sinxcosπ+cosxsinπ
/
cosxcos(3π/2) - sinxsin(3π/2)
sinx(-1) + cosx(0)
/
cosx(0)- sinx(-1)
-sinx/sinx
What do I do from here? Or what did I do wrong?
sin(x+π)/cos(x+3π/2) =tan^2x-sec^2x
I've done:
sinxcosπ+cosxsinπ
/
cosxcos(3π/2) - sinxsin(3π/2)
sinx(-1) + cosx(0)
/
cosx(0)- sinx(-1)
-sinx/sinx
What do I do from here? Or what did I do wrong?
Answers
first, note that since sec^2 = 1+tan^2, the right side is just -1
On the left, you have arrived at sinx/sinx = -1
Done
On the left, you have arrived at sinx/sinx = -1
Done
thank you!
Related Questions
Verify the identity .
(cscX-cotX)^2=1-cosX/1+cosX
_______
sorry i cant help you
(cscX-co...
Verify the identity:
tanx(cos2x) = sin2x - tanx
Left Side = (sinx/cosx)(2cos^2 x -1)
=sinx(2cos...
Verify that each equation is an identity.
16. 1+tanx/sinx+cosx =secx
ok i have a clue on how t...
Verify that the trigonometric equation is an identity. 1/2 sin 2 x − sin^2x over sinxcos2x = 1 over...