5
3
If cosa = and cos B=
5
where a, are acute angles. then prove that
>
13
16
a-B
1
a+ß
2
i) cos
ii) sin?
=
65
2
65
Answers
Answered by
0
FC in x hi ydig ii x hi f c kali software to v kyu clc it ziv ok dh hi hi phos
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