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Question

Verify that tan 30° = tan60° - tan30°1 + tan60° tan30°

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Solution

Here, LHS = tan 30o
= 13 (From table)


Now, RHS=tan 60°-tan 30°1+tan 60°tan 30° = 3-131+3×13 (From table)= 3-131+1= 223=13= RHS

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