The least value of 2sin2θ + 3cos2θ (A) 1/3 (B) 4/3 (C) 2 (D) 3/4 Answer: (C) Explanation: = 2sin2θ + 2cos2θ + cos2θ =2(sin2θ… Read More
Tag Archives: Aptitude-Trigonometry & Height and Distances
If tan (x+y) tan (x-y) = 1, then find tan (2x/3)? (A) 1/√3 (B) 1/2 (C) 1/√2 (D) 2/√3 Answer: (A)Explanation: tanA = cotB, tanA*tan B… Read More
What is minimum value of Sinθ + cosθ ? (A) -2 (B) √3/2 (C) -1 (D) -√2 Answer: (D)Explanation: Minimum value = √(a2 – b2)=-√2… Read More
What is the maximum value of 3 Sinθ + 4 cosθ? (A) 12 (B) 5 (C) 6 (D) 1 Answer: (B)Explanation: Maximum value = √(a2… Read More
