Question

prove that sin^-1(1/√17)+cos^-1(9/√85)=tan^1(1/2)​

Answer 1

Step-by-step explanation:

In sint

+ Cat = tan!! 2

Let sin't be a

So, sin e, AB AC

So, BC = VAC)-(AB)

> V17 -1

So , tan e, = AB 70,- tan''

And costa 185 be o

so, cosa = 9 OR PR

So, PQ: VPRO-(ARDA

- V85 -81 -V4

so, tanio = So, sin Vit 70 = tan + cosa V85 + 0.

z tan 14 tan'z + la 9.

tan!

z ton Y)- tan