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If √3cosec 2x = 2, then the value of x:
If tan A = 1 and tan B = √ 3, what is the value of cos A . cos B - sin A . sin B?
sin2 7˚ + sin2 9˚ + sin2 11˚ + sin2 12˚ + ……… + sin2 83˚ = ?
Find the value of sin 30°.
If sin x + cos x = √2 sin x, then the value of sin x - cos x is:
Find the value of sin265o + sin225o + cos235o + cos255o.
...If P, Q, R, S are the vertex of a cyclic quadrilateral. Find the value of
`1/sec p` +`1/sec q` +`1/sec r` +`1/sec s`
...A ladder is leaning against a wall, making an angle of 60° with the ground. The top of the ladder reaches a window 15 meters above the ground. Find the...
If sin θ = 3/5 and cos θ = 4/5, find the value of (2tan² θ + 3cot² θ).