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abruzzese [7]
3 years ago
11

Sec²A-cosec²A=(tanA+cotA)(tanA-cotA)​

Mathematics
1 answer:
Lady_Fox [76]3 years ago
8 0

Answer:

Step-by-step explanation:

Sec²A-cosec²A=(tanA+cotA)(tanA-cotA)

Tan^2A+1-cot^2A-1=(tan^2A-cot^2A)

tan^2A-cot^2A=tan^2A-cot^2A

L.H.S=R.H.S

Hence proved.

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