Question

if 3cot A=4, then prove that 1-TanA/1+TanA=-5/13​

Answer 1

Answer:

my be Q is wrong...........

Answer 2

Step-by-step explanation:

3cotA=4

cotA=4/3 (cot ø=base/perpendicular)

tanA=3/4 (tan ø=perpendicular/base)

1-tanA/1+tanA =(1-3/4)/(1+3/4)

=(4/4 - 3/4)/(4/4+3/4)

=(1/4)/(7/4)

=(1/4)×(7/4)

=7/16

as it is not equal to -5/13

conclusion: question is wrong