BITSAT 2019 Math Trignometry Revision Quiz 2

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Question 1

The least positive solution of cot[(π/3) sin 2x )]= √3 lies in

• A(0, π/6]
• B(π/9 ,π/6]
• C(π/9 ,π/3]
• D(π/3 ,π/2]

Question 2

No of values of a in interval [-,0] satisfying sin a +sin 2a =0 is

• A2
• B3
• C4
• D5

Question 3

The interval for which sinx cos³x - cos x sin³x >0 is

• A(0,/4)(/2,/4)
• B(/4,/2)
• C(0,/2)
• D(/4,3/4)

Question 4

No of solution of the equation x³+2x²+5x+ 2 cos x =0 in [0,2]

• A0
• B1
• C2
• D3

Question 5

The general solution of tan²x+sec 2x =1 is

• Ax=n , x=n
• Bx=n , x=n
• Cx=n , x=n
• Dx=n , x=n

Question 6

If is zero then value of is

• A1
• B
• C
• D

Question 7

For a given pair of values x and y satisfying x = sinα, y = sinβ, there are four different values of z = sin (α + β) whose product is equal to

• A
• B
• C
• Dnone of these

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