Math, asked by Detxined, 8 months ago

(i) sin (70° + theeta) – cos (20° – theeta) = 0

Answers

Answered by shubhamgamer6105

2

Answer:

LHS:

sin(70+theta) - cos(20-theta) =

cos(90 - (70+theta)) - cos(20-theta) =

cos(20-theta) - cos(20-theta) =

0 = RHS

Hence, proved

Answered by rekhasripal

1

Answer:

0 is the answer..LHS and RHS are the same

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