Q. 55.0( 3 Votes )

If tanθ = n tanα

Answer :


We want to find value of cos2θ in terms of m and n.


So we first eliminate angle α,


tanθ =n tanα [ Given]



(1)


sinθ =m sinα [ Given]



(2)


We know that,


cosec2α – cot2α =1


Substituting values from (1) and (2) gives,








Hence proved.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Trigonometric IdentitiesTrigonometric IdentitiesTrigonometric Identities39 mins
Heights and Distances-IHeights and Distances-IHeights and Distances-I45 mins
Trigonometric Identities-IITrigonometric Identities-IITrigonometric Identities-II43 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Prove the followiTamil Nadu Board - Math

If sinθ, cosθ andTamil Nadu Board - Math

Prove the followiTamil Nadu Board - Math

Prove the followiTamil Nadu Board - Math

If x = a secθ + bTamil Nadu Board - Math

Prove the followiTamil Nadu Board - Math

Prove the followiTamil Nadu Board - Math

Prove the followiTamil Nadu Board - Math

Prove the followiTamil Nadu Board - Math

Prove the followiTamil Nadu Board - Math