Question

Please answer it ....​

Answer 1

Answer:

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Step-by-step explanation:

sec A = 3/2

We know that,

Sec A = H/B

so, H = 3

And B = 2

By Pythagoras theorem,

H^2 = P^2 +B^2

3^2 = P^2 + 2^2

9 = P^2 + 4

P = √9-4

P = √5

So,

we put these values in the above question,

2cos^2A + 2cot^2A - 9

2 x (2/3)^2 + 2 x (2/√5)^2 - 9

8/9 + 8/5 - 9

By taking LCM,

(40 + 72 - 405) / 45

= -293 /45 .

Hope it helps You

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