What will be the value of 1 \sin\theta + 1/{\sin\theta } if \sin^2 \theta +1/ {\sin \theta^2}= 2 ?

RRB NTPC Prelims Model Paper 2 with solutions

Question : 79 of 101

Marks: +1, -0

What will be the value of

1 sinθ + 1/{sinθ } if sin^2 θ +1/ {sin θ^2}= 2 ?

Solution:

(1) We know,

[sin θ+1/{sinθ}]^2

sin^2θ+ 1/ { sin^2θ}+2×sinθ×1/ sinθ

Therefore,

sin θ+1/ {sinθ}=2

Go to Question:

Prev Question

Next Question