(i) sin (70° + theeta) – cos (20° – theeta) = 0
Answers
Answered by
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
1
Answer:
0 is the answer..LHS and RHS are the same
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