Principle Of Mathematical Induction

Question
CBSEENMA11013745

Show that:

sin open parentheses fraction numerator 2 straight pi over denominator 9 end fraction plus straight theta close parentheses space cos open parentheses straight pi over 18 plus straight theta close parentheses minus cos open parentheses fraction numerator 2 straight pi over denominator 9 end fraction plus straight theta close parentheses space sin open parentheses straight pi over 18 plus straight theta close parentheses space equals space 1 half




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