Cos81 - Sin9 =0 PROVE..
Answers
Answered by
15
Hello friend here is your answer
Cos(81)-Sin(9)=Cos(90-9)-sin9
=sin9-Sin9
=0
I used Cos(90-A)=SinA formula
Hope you understand please mark as brainliest
Cos(81)-Sin(9)=Cos(90-9)-sin9
=sin9-Sin9
=0
I used Cos(90-A)=SinA formula
Hope you understand please mark as brainliest
Answered by
17
hey buddy
LHS=cos(90-9)-sin9
=sin9-sin9 as cos(90-theta)=sin theta
=0=RHS
hence proved pls Mark as brainliest if u really like it
LHS=cos(90-9)-sin9
=sin9-sin9 as cos(90-theta)=sin theta
=0=RHS
hence proved pls Mark as brainliest if u really like it
manannarang1313:
what I have done
sry sent by mistake
ok
I'm sorry
it's okay
and thanx by the way
wc
???
welcome
:)
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