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(sin23°/cos67°) + (cos71°/sin19°) => sin (90° - x) = cos x => cos (90° - x) = sin x So, => sin( 90° - 67°)/cos67° + cos( 90° - 19°)/sin19° => cos67°/cos67° + sin19°/sin19° => 1 + 1 = 2
If tan A = 1 and tan B = √ 3, what is the value of cos A . cos B - sin A . sin B?
A tower is 60 meters high. From a point on the ground, the angle of elevation of the top of the tower is 30°. Find the distance of the point from the b...
If tanθ = x then find the value of cos 2θ?
The minimum value of 3 sin2 θ + 4 cos2 θ is
...If cos θ + sec θ = √2, then the value of cos³ θ+ sec³ θ is:
Given that tan(A+B) = √3 and tan(A-B) =1/√3, find the values of A and B.
