changevin term of cotA: secA
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Now, secA
= √(sec²A)
= √(1 + tan²A), since sec²A - tan²A = 1
= √(1 + 1/cot²A), since tanA = 1/cotA
This is the required form.
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Now, secA
= √(sec²A)
= √(1 + tan²A), since sec²A - tan²A = 1
= √(1 + 1/cot²A), since tanA = 1/cotA
This is the required form.
#MarkAsBrainliest
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