Question

Prove that:
(sec²A-1) cot²A=1​ _ ✳️❤️

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Answer 1

Answer:

hence proved

Refer the attachment

Answer 2

Answer:

(sec²A-1) cot²A=1

we know that sec²A-tan²A= 1

sec²A-1=tan²A

tan²A×cot²A

$\frac{1}{cot²A} \times cot²A = 1$

= 1

$we \: know \: that \: tanA = \frac{1}{cotA}$

$1 = 1$

hence proved

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