what is the value of sin15.cos15
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Answered by
27
let the value be x
then
x=sin15cos15
multiplying both sides by 2
2x=2sin15cos15
using
2sinxcosx =sin2x
we get
2x=sin30
x=1/4
so required value is 1/4
then
x=sin15cos15
multiplying both sides by 2
2x=2sin15cos15
using
2sinxcosx =sin2x
we get
2x=sin30
x=1/4
so required value is 1/4
Mohit0:
i didnt understood the 2 step
Answered by
8
1/4 is required value
thnk u ash11
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