Given that: `(1+cosalpha)(1+cosbeta)(1+cosgamma)=(1-cosalpha)(1-cosbeta)(1-cosgamma)dot` Show t...

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This is the Solution of Question From RD SHARMA book of CLASS 10 CHAPTER TRIGONOMETRIC IDENTITIES This Question is also available in R S AGGARWAL book of CLASS 10 You can Find Solution of All Question From RD SHARMA and R S AGGARWAL book from class 6-12 on our app DOUBTNUT for Free

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==== QUESTION TEXT ====

Given that: `(1+cosalpha)(1+cosbeta)(1+cosgamma)=(1-cosalpha)(1-cosbeta)(1-cosgamma)dot` Show that one of the values of each member of this equality is `s inalphas inbetas ingammadot`

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