Question

# Decide whether the equation is a trigonometric identity. Explain your reasoning.

secxtanx(1-sin^2x)=sinx

sec x tan x (1 – sin x ) = sin x

Left Hand Side = LHS

L.H.S = sec x tan x( 1 -sin x)

=

1 sinx

.. sin x + cos x =1

COs x Cost

cost x)

sin x

=

cos x = sin r

cos x

= R.H.S

Hence

sec x tan x (1 – sin’…

Math

Decide whether the equation is a trigonometric identity Explain your reasoning secxtanx(1sin^2x)=sinx