Question
Select the option that is related to the third number in
the same way as the second number is related to first number and the sixth number is related to the fifth number. 58: 42 :: 54 : ? :: 83: 28Solution
One is added to odd digit of the first number and one is subtracted from even digit of the first number and then both the digits are multiplied to obtain the second number. (5 + 1) x (8 – 1) = 6 x 7 = 42 (8 – 1) x (3 + 1) = 7 x 4 = 28 (5 + 1) x (4 – 1) = 6 x 3 = 18
Find the value of tan(75°) using the identity for tan(A+B).
If cos2B = sin(1.5B + 20o), then find the measure of 'B'.
The minimum value of 45 sin2 θ + 28 cos2 θ is
If √3cosec 2x = 2, then the value of x:
if 8 sin 2 x + 3 cos 2 x = 4  then find tan x
If cos 2A = 17, then find cos A
Find the value of: (Sin2 60 ° X cos 30 ° X sec 60°)/tan 30°
Simplify the following trigonometric expression:Â
15 cos 25° cosec 65° − 5 cot 80° cot 10°
If sin(3θ) = cos(2θ), then find the value of θ between 0 and 90 degrees.
