Test: Introduction Of Inverse Trigonometry


5 Questions MCQ Test Mathematics (Maths) Class 12 | Test: Introduction Of Inverse Trigonometry


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QUESTION: 1

Evaluate 

Solution:


   

QUESTION: 2

Value of 

Solution:

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

QUESTION: 3

The value of 15540_100(3) is given by​

Solution:



QUESTION: 4

The principal value of tan-1 (-1) is given by​

Solution:

QUESTION: 5

if 5 sin θ = 3, then  is equal to

Solution:

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