C is right angle of ∆ ABC, then the value ofcos(A+B)=
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Answered by
1
Step-by-step explanation:
A+B=90
cos(A+B)=cos 90=0
Answered by
0
Answer:
Answer is 0 refer to the attachment for working.
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![](https://hi-static.z-dn.net/files/d57/9da5a2eedfb707a1d9d6707e6d11498c.jpg)
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