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1 + 1 + 1/2+ 1/3 + 1/6 + 1/4 (12+12+6+4+2+3)/12 = 39/12 = 3.25
If tan θ + cot θ = 2 where 0 < θ < 90 ; find the value of tan30 θ + cot 29 θ.
In ∆ABC, AB = 5cm, BC = 6cm and AC = 10cm then find out the value of cos A?
If (sinθ+cosθ)/(sinθ-cosθ) = 2, then the value of sin4 θ is
If tan θ = (2/√5), then determine the value of cos2 θ
If sin (2x + 50) o = cos (2y - 50) o, such that, 0o < x + y < 90o, then find the value of tan(x + y) .
If sin3A = cos(5A-30°), then what is the value of A? Given that 3A is an acute angle.
sin2 12˚ + sin2 14˚ + sin2 16˚ + sin2 18˚ + ……… + sin2 78˚ =?