COS Acos-B
7.
A-tan B)2 + (1 + tan A tan B)2
(ii) tan2 A sec2 B - sec2 A tan2 B = tan? A- tan’ B
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COS Acos-B
7.
A-tan B)2 + (1 + tan A tan B)2
(ii) tan2 A sec2 B - sec2 A tan2 B = tan? A- tan’ B
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Verified answer
Answer:
tan4
Step-by-step explanation:
tan1 + cos 5× =tan4