Evaluate
Value of
Since sin-1(-π/2)=-sin-1(π/2)=-1
so, cot -1(-1)
let (- cot-11)=α
cot α =-1 =cot (π/2+π/4) =3π/4
The value of is given by
The principal value of tan-1 (-1) is given by
if 5 sin θ = 3, then is equal to
sin θ is 3/5.
on simplifying:
(secθ + tanθ)/(secθ - tanθ)
We get, (1+sin θ)/(1-sin θ)
=(1+3/5)/(1-3/5)
=(8/2)
=4
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