Question

8 ] cos (90°-A)=then Sin(a+B) =
a)1 b) 2 ) 3 d) None of this above
please make it fast
I need step by step explaination please​

Answer 1

Answer:

8 ] cos (90°-A)=then Sin(a+B) =

a)1 b) 2 ) 3 d) None of this above

please make it fast

I need step by step explaination please

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