Find the value 'x', if:

योग

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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अध्याय 22: Trigonometrical Ratios of Standard Angles - Exercise 27.2

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

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

Find the value of 'A', if (2 - cosec 2A) cos 3A = 0

If sin α + cosβ = 1 and α= 90°, find the value of 'β'.

If θ = 30°, verify that: 1 - sin 2θ = (sinθ - cosθ)²

If A = B = 60°, verify that: cos(A - B) = cosA cosB + sinA sinB

In the given figure, PQ = 6 cm, RQ = x cm and RP = 10 cm, find
a. cosθ
b. sin²θ- cos²θ
c. Use tanθ to find the value of RQ

Find the length of EC.

Find the value 'x', if:

If sec2θ = cosec3θ, find the value of θ if it is known that both 2θ and 3θ are acute angles.

Prove the following: sin58° sec32° + cos58° cosec32° = 2