Question

If√3 tanΦ=3 sinΦ, then sin²Φ-cos²Φ

Answer 1

Tan@=3/√3

Tan@=√3

Tan@= Tan60°

@=60°

Sin^2 60° -Cos^2 60°

=(√3/2)^2 -(1/2)^2

=3/4 -1/4

=2/4

=1/2

ANSWER ----=1/2