What is the value of 3 tan 20o .tan45o.tan 70o?
Answer & explanation
Correct answer: option 2
3 tan 20o .tan45o.tan 70º
{ using , Iff A + B = 90º then , tanA × tanB = 1 }
= 3 × 1 × 1
= 3
What is the value of 3 tan 20o .tan45o.tan 70o?
Correct answer: option 2
3 tan 20o .tan45o.tan 70º
{ using , Iff A + B = 90º then , tanA × tanB = 1 }
= 3 × 1 × 1
= 3