Math, asked by ecohimanshu756596494, 10 months ago

Evalute cot.12 38.cot 52.cot 60.cot 78

Answers

Answered by ayushman1484

2

Answer:

1/√3

Step-by-step explanation:

we know

cot(90-X)=tanX

so, cot12=tan78

cot38=tan52

The question becomes

tan78*cot78*tan52*cot*52*cot60

Now, tanX*cotX=1, so,

the question simplifies to cot60

now cot60=1/√3

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