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CBSE Class 11-science Answered

The pe period of sin x (Pi /3+x)sin(pi/3-x)is
Asked by mvr23467 | 12 Sep, 2023, 07:52: PM
answered-by-expert Expert Answer
sin(pi/3 + x) sin(pi/3 - x)
equals 1 half open square brackets cos open parentheses straight pi over 3 plus straight x minus straight pi over 3 plus straight x close parentheses minus cos open parentheses straight pi over 3 plus straight x plus straight pi over 3 minus straight x close parentheses close square brackets
equals 1 half open square brackets cos open parentheses 2 straight x close parentheses minus cos open parentheses fraction numerator 2 straight pi over denominator 3 end fraction close parentheses close square brackets
equals 1 half open square brackets cos open parentheses 2 straight x close parentheses plus 1 half close square brackets
rightwards double arrow straight f left parenthesis straight x right parenthesis equals 1 half open square brackets cos open parentheses 2 straight x close parentheses plus 1 half close square brackets
rightwards double arrow straight f left parenthesis straight x right parenthesis equals 1 half cos left parenthesis 2 straight x right parenthesis plus 1 fourth
Period space of space straight f left parenthesis straight x right parenthesis space is space straight pi.
Answered by Renu Varma | 14 Sep, 2023, 10:23: AM
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