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Lady bird [3.3K]
3 years ago
10

If Sin A = { then(2Cot²A + 2) is​

Mathematics
1 answer:
alukav5142 [94]3 years ago
7 0

Answer:

18

Step-by-step explanation:

=2(cot²A+1)

=2cosec²A. [` . ` cot²A+1=cosec²A] =2(1/sinA)²

[' . 'cosecA=1/sinA]

=2×3²/1

=2cot²a+2=2×8+2=16+2=18

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