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In a triangle ABC, tan A/2 = 5/6, tan B/2 = 20/37, then tan C/2 is equal to:
In a triangle ABC, cosec A (sin B cos C + cos B sin C) equals:
Sin A = 1/√10 , Sin B = 1/√5 If A and B are both acute angles, then, A+B =?
If 3 × tan(x – 15) = tan(x + 15), then the value of x is:
Chose which of the following expressions equals sinA + cosA.
If acos x + bsin x = c, then the value of (asin x – bcos x)² is:
sin(60° + A) cos(30° – B) + cos(60° + A) sin(30° – B) is equal to:
If cos a + 2cos b + cos c = 2 then a, b, c are in
cos(π/4  x) cos (π/4  y) sin(π/4  x) sin(π/4  y) =
157 videos210 docs132 tests

157 videos210 docs132 tests
