If tan 2A = cot (A – 18°), then the value of A is
The value of cos^{2} 17° – sin^{2} 73° is
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If sec 4A = cosec (A20°),where 4A is an acute angle, find the value of A
The value of cos θ cos(90°  θ) – sin θ sin (90°  θ) is:
Out of the following options, the two angles that are together classified as complementary angles are
If cos (40° + A) = sin 30°, the value of A is:
sin (60° + θ) – cos (30° – θ) is equal to (where (60° + θ) and (30°  θ) are both acute angles):
The value of tan1°.tan2°.tan3°………. tan89° is :
Using the ratio of complementary angles, the value of is
If x sin (90° – θ) cot (90° θ) = cos (90° – θ) then x is
If A and B are the angles of a right angled triangle ABC, right angled at C, then 1+cot^{2}A =
338 docs164 tests

338 docs164 tests
