NDA || Mathematics || Trigonometry || Trigonometric Properties || Quiz 2020

If the angle of a triangle ABC are in AP and , then what is the measure of angle A?

If tan A – tan B = x and cot B – cot A = y, then what is the value of cot(A - B)?

If 2 tan A = 3 tan B = 1, then what is tan (A - B) equal to?

If angle C of a triangle ABC is a right angle, then what is tanA + tanB equal to?

ABC is a triangle right angled at B and  What is  equal to?

In a triangle ABC, if cos A = cos B + cos C, what is the value of tan A – tan B – tan C

In a right angled triangle ABC, right-angled at B, if cos A =, then what is sin C equal to ?

If x, x - y and x + y are the angles of a triangle (not an equilateral triangle) such that tan (x - y), tan x and tan (x + y) are in GP, then what is x equal to?

If the angles of a triangle ABC are in the ratio 1 : 2 : 3, then the corresponding side are in the ratio