Share
Explore BrainMass

Verify the trigonometric identities.

Verify the following identities, show all work

secx(1-sin^2x)=cosx

tanx + cotx=secxcscx

cotx/cosx=cscx

csc^2x(1-cos^2x)=1

cosxcotx + sinx=cscx

Solution Preview

1) secx(1-sin^2x)=cosx
(1-sin^2x) is Cos^2x

so secx Cos^2x

Secx = 1/cosx

rewriting , cos^2x/cosx = cosx

2)tanx + cotx=secxcscx

tanx ...

Solution Summary

Trigonometric identities are proven.

$2.19