Evaluate the following: sin31° - cos59°

योग

sin31° - cos59°
= sin(90° - 59°) - cos59°
= cos59° - cos59°
= 0.

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Trigonometric Equation Problem and Solution

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अध्याय 27: Trigonometrical Ratios of Standard Angles - Exercise 27.3

अध्याय 27 Trigonometrical Ratios of Standard Angles
Exercise 27.3 | Q 2.1

If sin 3A = 1 and 0 < A < 90^°, find sin A

Solve the following equation for A, if tan 3 A = 1

Calculate the value of A, if (sec 2A - 1) (cosec 3A - 1) = 0

Find the magnitude of angle A, if 2 cos² A - 3 cos A + 1 = 0

Solve for x : sin (x + 10°) = `(1)/(2)`

Solve for x : cos (2x - 30°) = 0

Find the value of 'x' in each of the following:

Evaluate the following: `(sin25° cos43°)/(sin47° cos 65°)`

Evaluate the following: cot20° cot40° cot45° cot50° cot70°

If sin(θ - 15°) = cos(θ - 25°), find the value of θ if (θ-15°) and (θ - 25°) are acute angles.