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The value of (cot54^(@))/(tan36^(@))+(ta...

The value of `(cot54^(@))/(tan36^(@))+(tan20^(@))/(cot70^(@))` is

A

0

B

1

C

2

D

3

Text Solution

Verified by Experts

The correct Answer is:
C
`(cot54^(@))/(tan36^(@))+(tan20^(@))/(cot70^(@))=(cot(90^(@)-36^(@)))/(tan36^(@))+(tan(90^(@)-70^(@)))/(cot70^(@))`
`=(tan36^(@))/(tan36^(@))+(cot70^(@))/(cot70^(@))=1+1=2`
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