Math, asked by aroranamankalra, 12 days ago

19 If ∆ABC is right angled at C, then the value of cos (A+B) is

Answers

Answered by stusrinika010870

0

Answer:

0

Step-by-step explanation:

Since ABC is a right angled triangle right angled at C

Hence

A+B=180

0

−C=90

0

Hence

cos(A+B)

=cos(90

0

)

=0

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