20. tan 15° tan 20 (an 70 tan75The value of tan 15° tan 20° tan 70 – InterviewSolution

1.	20. tan 15° tan 20 (an 70 tan75The value of tan 15° tan 20° tan 70 tan?5TA) -1(C) 0(B) 2(D) 1210]Page 5 of 16
Answer» Answer:D)1Explanation:Tan 15 tan 20 tan 75 tan 70tan(90-x)= cot xtan 15=cot 75tan20=cot 70tan75cot75=1tan70cot70=1now Tan 15 tan 20 tan 75 tan 70=1*1 =1

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