# IIT JEE / PMT Module Test 2 : +2 Mathematics : Inverse Trigonometric Functions

Normal type of MCQ with one correct option cot(1 21 + cot(1 13 + cot-1 ((8) is equal to
0
cot(1 26
(
none of these
Normal type of MCQ with one correct option sin (cot-1x) is equal to
none of these

none of these
Normal type of MCQ with one correct option cot (cos(1x) is equal to
none of these

A,B
B
C,D
A,B & D

null set
Comprehension In reducing a given equation to the standard forms (sinx=sin( etc) we apply trigonometric or algebraic transformations. As a result of which the canonical form finally obtained may not be equivalent to the original equation resulting either in loss of solution or in the appearance of fake solutions. The equation 2 cot 2x-3 cot 3x = tan2x has
two solutions in (0, (/3)
one solutions in (0, (/3)
no solution in (-(, ()
none of these
Comprehension In reducing a given equation to the standard forms (sinx=sin( etc) we apply trigonometric or algebraic transformations. As a result of which the canonical form finally obtained may not be equivalent to the original equation resulting either in loss of solution or in the appearance of fake solutions. The solution to the equation |cosx| = cosx -2 sinx is
None of these.

Both A and R are true and R is correct explanation of A
Both A and R are true and R is not correct explanation of A
A is true, R is false
A is false, R is true

Description:

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