Find the value 'x', if:

बेरीज

In right ΔPQS,

sin30° = `"PQ"/"PS"`

⇒ `(1)/(2) = x/(100)`
⇒ x = 50m.

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Trigonometric Equation Problem and Solution

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पाठ 22: Trigonometrical Ratios of Standard Angles - Exercise 27.2

पाठ 22 Trigonometrical Ratios of Standard Angles
Exercise 27.2 | Q 9.5

If 2 sin x° − 1 = 0 and x° is an acute angle; find:

If 4 sin² θ – 1 = 0 and angle θ is less than 90°, find the value of θ and hence the value of cos² θ + tan² θ.

State for any acute angle θ whether cos θ increases or decreases as θ increases.

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

Solve for x : sin² x + sin² 30° = 1

Evaluate the following: `((1 - cosθ)(1 + cosθ))/((1 - sinθ)(1 + sinθ)` if θ = 30°

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

Find the value 'x', if:

Evaluate the following: cos39° cos48° cos60° cosec42° cosec51°

Evaluate the following: tan(78° + θ) + cosec(42° + θ) - cot(12° - θ) - sec(48° - θ)