Find the value 'x', if: - Mathematics

Find the value 'x', if:

योग

In right ΔABC,

sin45° = `"BC"/"AC"`

⇒ `(1)/sqrt(2) = (15)/x`
⇒ x = `15sqrt(2)"cm"`.

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Trigonometric Equation Problem and Solution

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अध्याय 27: Trigonometrical Ratios of Standard Angles - Exercise 27.2

अध्याय 27 Trigonometrical Ratios of Standard Angles
Exercise 27.2 | Q 9.2

If 2 cos (A + B) = 2 sin (A - B) = 1;
find the values of A and B.

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a. cosθ
b. sinθ

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

Evaluate the following: sin28° sec62° + tan49° tan41°