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ATQ, Probability that A speak Truth, P(A) = (5/))) Probability that B speak Truth, P(B) = (8/9) Probability that A and B lie is P(A) lies=1/7 P(B) lies=1/9 Required probability = P(A)×P(B)+P(A)×P(B) = {[(5/7) × (1/9)] + [(1/7) × (8/9)]]} = (5/63) + (8/63) = 13/63
If sin(x + y) = 3/5 and cos(x - y) = 12/13, where x, y ∈ [0, π/2], find sin(2x) + sin(2y).
The angle of depression of two ships from the top of a light house are 45º and 30º. if the ships are 120m on the opposite sides of li...
The minimum value of 12 sin θ + 5 cosθ is
If tan α = 1/2, tan β = 1/3, then find α + β.
If √3cosec 2x = 2, then the value of x:
What is the value of [tan2 (90 – θ) – sin2 (90 – θ)] cosec2 (90 – θ) cot2 (90 – θ)?
...if cot x- tan x=7 then what is the value of cot x + tan x=?
