Question

NOR
tan(a+B) + tanía -2).
1 - tan(a + p)-tan(a - b)
5
17. : (i) Il cos(a+b) =ş and sin(a – B) =
13
find the value of tan 2a..
[I,T. 793
2
(i) Il sin(A - 8) = and cos(A+B) =
V10
V29
find the value of tan 2A iſ A and B lie
betwveen 0 and
(8.1.T.90)
Ex
So
[Hints :0<A+Band -- <A - B
But sin (A - B) is +ve, therefore​

Answer 1

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