The efficiency of A is half than that of B and C together. The ratio of the efficiency of B and C is 5 : 4. A, B and C together can do this work in 12 days. How many days C will take to complete this work?
The Value of (sin38˚)/(cos52˚) + (cos12˚)/(sin78˚) - 4cos²60˚ is
if a sin 45 ˚ = b cosec 60 ˚ then find the value of a⁴/b⁴
...if 8 sin 2 x + 3 cos 2 x = 4 then find tan x
If A and B are complementary angles, then the value of-
sin A cos B + cos A sin B – tan A tan B + sec 2
If tan A = 1 and tan B = √ 3, what is the value of cos A . cos B - sin A . sin B?
cos A (sec A – cos A) (cot A + tan A) = ?
Given that 'θ' is an angle less than 120°, what is the value of 'θ' if it satisfies the equation 7cos² θ = 1 + sin²θ?