sin25cos65+cos25sin65=?
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4
sin90° = 1
formula = sin(A+B)=sinAcosB+cosAsinB
formula = sin(A+B)=sinAcosB+cosAsinB
yadav13:
Bhaiya solution de dijiye
solution is given here...make me brainliest if u like
Answered by
22
heya !!
solution is given below :
--sin25sin(90-25)+cos25cos(90-25)
=sin25sin25+cos25cos25
=(sin25)^2+(cos25)^2
=as sin square theta+cos square theta =1
=hence (sin25)^2+(cos25)^2=1
answer=1.
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hope it helps u !!!☺
solution is given below :
--sin25sin(90-25)+cos25cos(90-25)
=sin25sin25+cos25cos25
=(sin25)^2+(cos25)^2
=as sin square theta+cos square theta =1
=hence (sin25)^2+(cos25)^2=1
answer=1.
●●●●●●●●●●●●●●●●●●●●●●●●
hope it helps u !!!☺
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