Question

Prove that
tan 80 = 2 tan 7o + tan 10
​

Answer 1

Step-by-step explanation:

Tan 80 = (tan 10 + tan 70) / 1-tan10tan70 tan80 - tan10tan70tan80 = tan10 + tan70 tan80 - tan70 = tan10 + tan70 tan80 = tan10 + 2tan70 hence proved

√\__________Anushka❤❤

Answer 2

Answer:

$\huge\underline\mathfrak\color{Red}solution:-$

tan 80 = (tan 10 + tan 70) / 1-tan10tan70 tan80 - tan10tan70tan80 = tan10 + tan70 tan80 - tan70 = tan10 + tan70 tan80 = tan10 + 2tan70 hence proved

$\huge\underline\mathfrak\color{pink}proved$