An angle is thrice its complementary angle. What is the measure of the angle?
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What is the value of [(sin x + sin y) (sin x – sin y)]/[(cosx + cosy) (cosy – cosx)]?
sin(A+B) - sin(A-B) is equal to
If x + 1x = -2, then the value of x631 + 1x632?
Find the value of 64344?
Two chords AB and CD of a circle with centre O intersect at P. If ∠APC = 40°. Then the value of ∠AOC + ∠BOD is
The two sides holding the right-angle in a right-angled triangle are 3 cm and 4 cm long. The area of its circumcircle will be in sq.cm:
∆DEF is right angled at E. If tanD = 4/3, then what is the value of tanF ?