If A = 30°, B = 60° and C = 135°, then what is the value of sin3A + cos3B + tan3C – 3sin A cos B tan C?
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Find the common factor of (3757+4357) and (3737+4337) ?
If 1-aa3+9 = 19 - a1-a3, then what is the value of a?
A boy running at 10/9 th of his actual speed covers 39 km in 2 hours 20 minutes and 24 seconds. Find the actual speed of the boy (approx.)
If the edge of a cube is increased by 10%, then what will be the percentage increase in its volume ?
Of the 5 numbers whose average is 76, the first is 3/7 times the sum of other 4. The first number is
If 7A = 5B = 2C; find A : B : C.
The mean of 20 observations is 19. One more observation is included and the new mean becomes 20. The 21st observation is