Equating sums and products by angle addition properties
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Khan AcademyAshish Gupta
Equating sums and products by angle addition properties
In this video, we solve three problems on proving statements involving sums and products of trigonometric ratios. We do this using angle addition identities and double angle identities. The key step in solving problems like these is identifying the right ratios to group together. We discuss strategies and tips that help identify these groups.
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