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Q.

The value of  sec30°cosec 60° is:


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a

4

b

0

c

3

d

1 

answer is D.

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Detailed Solution

Given expression sec30°cosec 60°.
Now, sec 30°=2√3 and cosec 60°=2√3 .
Substituting the values in the given expression,
sec30°cosec 60°=2323 ⇒sec30°cosec 60°=1 Thus, the value of the given expression is 1.
Hence, option 4 is the correct answer.
 
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