Practice MCQ Questions and Answer on Trigonometry

131.

If xsin60°.tan30° - tan245° = cosec60°.cot30° - sec245° then x = ?

  • (A) 2
  • (B) -2
  • (C) 6
  • (D) -4

132.

The value of sin230°.cos245° + 2tan230° - sec260° is equal to:

  • (A) 1312
  • (B) 7724
  • (C) 2512
  • (D) 112

133.

The value of 2cos3θcosθsinθ2sin3θ:

  • (A) secθ
  • (B) sinθ
  • (C) cotθ
  • (D) tanθ

134.

If cosθ - sinθ = 13, where 0 â‰Â¤ θ â‰Â¤ π2, then the value of cosθ - sinθ is?2244

  • (A) 13
  • (B) 23
  • (C) 19
  • (D) 29

135.

If cos53° = xy, then sec53° + cot37° is equal to:

  • (A) x+y2x2y
  • (B) x+y2x2x
  • (C) y+y2x2x
  • (D) y+y2x2y

136.

If cosθ.cosec23° = 1, the value of θ is?

  • (A) 23°
  • (B) 37°
  • (C) 63°
  • (D) 67°

137.

If sinθ = 4cosθ, then what is the value of sinθcosθ?

  • (A) 29
  • (B) 310
  • (C) 417
  • (D) 34

138.

The expression (tanθ + cotθ)(secθ + tanθ)(1 - sinθ), 0° θ 90° is equal to:

  • (A) sinθ
  • (B) secθ
  • (C) cosecθ
  • (D) cotθ

139.

The value of the expression 2(sin6θ + cos6θ) - 3(sin4θ + cos4θ) + 1 is?

  • (A) -1
  • (B) 0
  • (C) 1
  • (D) 2

140.

If âˆÂ A and âˆÂ B are complementary to each other, then the value of secA + secB - secA.secB is?2222

  • (A) 1
  • (B) -1
  • (C) 2
  • (D) 0