Math, asked by aashitasen, 6 months ago

4.If 1 - cos B
prove that 25 sinB (sinB - COSB) = 4.

Answers

Answered by abhishek198733

0

Step-by-step explanation:

Cos B = 3/5

by pythagorous SinB = 4/5

then 25 × 4/5 ( 4/5 - 3/5 ) = 4

20 × 1/5 = 4

hence proved

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