Mathematics
If sec A sin A = 0, find the value of cos A.
Trigonometric Identities
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Answer
sec A sin A = 0
⇒ sin A = 0
⇒ tan A = 0
⇒ tan A = tan 0°
Thus, A = 0°.
Now, cos A = cos 0° = 1
Hence, cos A = 1.
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If sec A sin A = 0, find the value of cos A.
49 Likes
sec A sin A = 0
⇒ sin A = 0
⇒ tan A = 0
⇒ tan A = tan 0°
Thus, A = 0°.
Now, cos A = cos 0° = 1
Hence, cos A = 1.
Answered By
19 Likes