sin(180-x)=sinx holds true only if x is acute?
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45° should be the correct answer
Answered by
2
yes its true beacuse any angle subtracted from 180° then the trignometry function remain same
Ankitsain:
how can you explain?
put any acute value or smaller than 180° it will give eqaul to sinx
but suppose thr question is as follows
in what type
qn: In any quadrilateral ABCD. prove that sin(A+B)+sin(C+D)=0
can u pps solve th8s
i can try
A=B=C=D=90 then sin(90+90)+sin(90+90)=sin180+sin180=0
but what if A,B,C,D is not 90
then it make two traingles
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