Maths MCQS for NTS Set 1

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Maths MCQS for NTS


Cos-1 x =
?/2 – sin-1 x
? + sin-1 x
?/2 +sin-1 x
? = sin-1 x

Sin-1 [-1/2] = ______.
-?/3
-?/6
?/3
?/6

The multiplicative inverse of -1 in the set {1-,1} is
30
20
40
50

If x lies in {0, 2?} and Cosec x = 2 then x =
? +2n?
?/ 6 and 5?/6
n?
2?/3 and ?/3

Period is Tan x/5 is
5?
4?
2?
?/5

The line joining (1,3) to (a,b) has unit gradient then
2a + 3b =1
a-b =-2
A-b =5
a+b = 0

Cos-1 (-x) =_______.
? +sin-1 x
? -sin-1 x
? +cos-1 x
? -cos-1 x

If in isosceles right angled triangle one side is a then hypotenuse is
a
Cannot be determined by given
a?2
a/2

Sin-1 (-x) =
-Sin-1 X
1/sin-1x
Sin-1 1/x
Cos-1 1/x

The set {1, -1, i, -i}, form a group under
addition
subtraction
None
multiplication

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