Question

it tan (A-B)=1/5, tan B= 10 find cot 10

Answer 1

Step-by-step explanation:

tan(A-B)= tanA-tanB

1+tanAtanB

1/5. =tanA-10

1+tanA(10)

1/5+2tanA=tanA-10

tanA = -10-1/5

= -(10+1/5)

=-(51/5)