1.

If sin80+sin50= 2sinA.cosB then a and b is

Answer»

Answer:

A=65,B=15

Step-by-step explanation:

formula,

sinA+sinB = 2sin(A+B/2).COS(A-B/2)

now,

A= 80+50/2

= 130/2

=65

B=80-50/2

=30/2

=15



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