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In ∆abc prove that tan(a - b - c) = tan2a ...............

In ∆abc prove that tan(a - b - c) = tan2a ...............

Grade:11

1 Answers

vijay kr sinha
11 Points
6 years ago
HUIEVHUIHREFIERWBBSHBCFHEBTHV RJKTHGJDHRJ HDUIHFGJVKHJGDCHJRDTJVHRIDHTVYGH4VUTHGVRTV HYURV  HJFGNYRTD HRTDGJIORDT9YB8RYYGU9HGUHEWRCIEWURICOEWOIWHHTVEUTRRRRRRTYBIRYBJTTFRIHUIBH UITRI U
 

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