Trigonometric ratios for 30 degrees
Value for the Trigonometrical Ratios for certain angle such as ,
,
and
are commonly called standard angles and the trigonometrical ratios of these angles are frequently used to solve particular angles.
Solve the following :
| |||
| Right Option : B | |||
| View Explanation | |||
The value of
| |||
| Right Option : D | |||
| View Explanation | |||
sin 2A = 2 sin A is true when A = | |||
| Right Option : A | |||
| View Explanation | |||
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