Prove that: tan10 + tan70 + tan100 = tan10. tan70. tan100
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Answer:
Step-by-step explanation:
100+70= -10
Taking tan on both sides,we get,
Tan(100+70) = -tan10
Tan100 + tan 70 /1-tan100.tan70 = -tan10
Tan100 +tan 70 = -tan10 +tan100.tan70.tan10
Therefore Tan10+tan70+tan100= tan10.tan70.tan100
LHS= RHS
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