Question #581a5

2 Answers
Apr 28, 2017

19119=8

Explanation:

tanθ+1tanθ=10
So tanθ=19
19119=8

Apr 29, 2017

Given
tanθ+1tanθ=10

We know

(tanθ+1tanθ)2(tanθ1tanθ)2=4tanθ×1tanθ

102(tanθ1tanθ)2=4

(tanθ1tanθ)2=1024

tanθ1tanθ=±96=±46