Q. 7 D4.8( 4 Votes )

Write each of the following in the simplest form:

Assume x = tanθ

= tan–1

= tan–1

= tan–1

= tan–1

= tan–1

Cos θ = 1 – 2 sin2 and sinθ =

1 – cosθ = 2 sin2

= tan–1

= tan–1

= tan–1(tan)

=

But θ = tan–1x.

Therefore, the simplification of given equation is

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