Share
Notifications

View all notifications

Prove That: Cos 2 θ ( 1 + Tan 2 θ ) = 1 - Geometry

Login
Create free account


      Forgot password?

Question

Prove that:

\[\cos^2 \theta\left( 1 + \tan^2 \theta \right) = 1\]

Solution

cos2θ (1 + tan2θ)

= cos2θ  × sec2θ

= cos2θ  ×`1/(cos^2 theta)`

= 1

  Is there an error in this question or solution?

APPEARS IN

Solution Prove That: Cos 2 θ ( 1 + Tan 2 θ ) = 1 Concept: Application of Trigonometry.
S
View in app×