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sleet_krkn [62]
3 years ago
6

Verify this identity: secx-cosx = 1-cos^2x/cosx

Mathematics
1 answer:
Sauron [17]3 years ago
5 0

Step-by-step explanation:

sec x − cos x

Secant is the inverse of cosine:

(1 / cos x) − cos x

Find the common denominator:

(1 / cos x) − (cos² x / cos x)

Subtract:

(1 − cos² x) / cos x

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