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Q21 pls

Asked by Tanishq 25th October 2017, 5:27 PM
Answered by Expert
Answer:
begin mathsize 16px style 2 sinαcosβsinγ equals sinβsin open parentheses straight alpha plus straight gamma close parentheses
2 cosβ over sinβ space equals space fraction numerator sin open parentheses straight alpha plus straight gamma close parentheses over denominator sinαsinγ end fraction
2 cotβ space equals space fraction numerator sinαcosγ plus cosαsinγ over denominator sinαsinγ end fraction
2 cotβ space equals sinαcosγ over sinαsinγ space plus space cosαsinγ over sinαsinγ
2 cotβ space equals space cotγ space plus space cotα
cotα comma space cotβ comma space cotγ space are space in space Arithmetic space progression.
rightwards double arrow tanα comma space tanβ comma space tanγ space are space in space Harmonic space progression. end style
Answered by Expert 14th December 2017, 4:43 PM
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