Math, asked by kky121, 1 year ago

which of the following is rational? 1)cos15 2)sin 15 3)sin15cos15 4)sin15cos75

Answers

Answered by arjunrijesh12

0

Answer:I think answer is option 4

Step-by-step explanation:

As cos75=sin15

Sin15cos75=sin²15

kky121: i think 3

arjunrijesh12: Why

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