If θ is an acute angle and tan θ + cot θ = 2, then the value of \(tan^{200} θ + cot^{200} θ\) is:
At a certain rate per annum, the simple interest on a sum of money for one year is Rs. 260 and the compound interest in the same sum for two years is Rs 540.80/-. The rate of interest per annum is
If x cosA - y sinA = 1 and x sinA + y cosA = 4, then the value of \(17x^2+17y^2\) is:
If \({ sec^270° -cot^220°\over2{(cosec^259°-tan^231°)} }= {2 \over m}\)then m is equal to:
One dozen notebooks quoted at Rs. 125 are available at 20% discount. How many notebooks can be bought for Rs. 75?