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O(n)
If (5sinx - cosx) = 2√2sinx, then find the value of 'tanx'
if 7 sin 2 x + 2 cos 2 x = 4 then find tan x
If tanθ – cotθ = a and cosθ + sinθ = b, then (b2 –1)(a2 + 4) = ?
If 7sin²θ + 3cos²θ = 4, then find the value of θ?
If sin(x-y) = 1 and cos(x+y) = 1 /√2 then what is measure of angle x.
If tan 12θ x tan 6θ = 1 then the value of tan 9θ is
If tanθ = (2/√5), then find the value of cos2 θ
