Question

cosA=4/5 ho to tanA=? ​

Answer 1

Answer:

tanA=3/4

Step-by-step explanation:

sin^2A+cos^2A=1

sin^2A=1-cos^2A

sin^2A=1-(4/5)^2

sin^2A=1-16/25

sin^2A=25-16/25

sin^2A=9/25

sinA=3/5

tanA=sinA/cosA

tanA=3/4