Question

write the
value of
tan 10tan15° ten 75° tendo
Write​

Answer 1

Answer:

tan=10 tan=15 tan(90-75)

tan(90-80)=tan10 tan 15

cot15 cot 10

as we know theta *cot

theta=1

so tan10 cot 10

tan 15 cot 15=1