CBSE BOARD X, asked by varuvarun71938, 6 months ago

If tuiangle ABC is a night
angled at then
the walue
find
q
of CoseA+B)

Answers

Answered by rajrahul18

0

Answer:

Cos(A+B)=0

Explanation:

A+B+C=180

Given

c=90

A+B=90

Cos(90)=0

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