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11) Show that tan 3x tan 2x tan xtan 3x-tan 2x-tan x. |
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Answer» From 3x = 2x + x Applying tan on both sides.. tan3x = tan (2x+x) tan3x = (tan2x+tanx)/1-tan2x tanx (1-tan2x tanx)tan3x = tan2x+tanx tan3x - tanx tan2x tan3x = tan2x+tanx tanx tan2x tan3x = tan3x-tan2x-tanx Like my answer if you find it useful! |
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