Quantitative Aptitude - Arithmetic Ability Questions

ΔDEF is right angled at E. If secD = 25/7, then what is the value of cosecF ?

The maturity value of a certain sum after two years at 20% p.a. interest compounded annually is Rs. 14,400/-. Find the Principal amount.

If θ is acute angle and sin(θ+18°)= 1/2, then the value of θ in circular measure is

If a + b + c + d = 4, then the value of 1(1-a)(1-b)(1-c) + 1(1-b)(1-c)(1-d) + 1(1-c)(1-d)(1-a) + 1(1-d)(1-a)(1-b)

If ax + by = 1 and bx + ay = 2aba2+b2 then x2+y2a2+b2 is equal to

2 ­- (cosA + sinA)2 is equal to

In the following question, select the odd letters from the given alternatives.

What is the value of cot210°?