Question

(sec²A-1) cot²A = 1​

Answer 1

Answer:

sec²A-1) cot²A = 1

tan²A × cot²A = 1

$( \frac{ \sin \: a }{ \cos \: a}) {}^{2} \times ( \frac{ \cos \: a }{sin \: a} ) {}^{2}$

$\frac{ \sin(a) {}^{2} }{ \cos(a) {}^{2} } \times \frac{ \cos(a) {}^{2} }{ \sin(a) {}^{2} }$

$\frac{1}{1}$

= 1

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