Question

if sin theta = 4/5 verify that 1+ tan² theta=sec²theta​

Answer 1

Step-by-step explanation:

base=√ 5^2-4^2=3

tan@=4/3. sec@=5/3

1+tan^2@=1+(4/3)^2=1+16/9

=16+9/9=25/9

=(5/3)^2

1+tan^2@=sec^2@