Question

$\frac{1 + {tan}^{2}a }{1 + {cot}^{2}a } = .........$
a)
${sec}^{2} a$
b)
$- 1$
c)
${cot}^{2} a$
d)
${tan}^{2} a$
please give the answer fast...tomorrow is my exam..

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Answer 1

Answer:

D) tan²A

Step-by-step explanation:

Formula used:

Tan A = sinA/cosA

Cot A= cosA / sinA

Sin²A+ cos²A= 1

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Answer:

1+tan²A/1+cot²A = tan²A

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Hope this will help you...

Answer 2

Step-by-step explanation:

The answer is d) tan²

wait for step by step explanation