Question

if sec = 5/3, find value of sin a + tan a

Answer 1

Answer:

32/15

Step-by-step explanation:

We know that sec a = 1/cos a, so we get cos a= 3/5

Now sin a = √(1 - cos² a) = √(1 - (3/5)²) = √(16/25)= 4/5

Now, tan a = sin a/cos a= 4/5*5/3 = 4/3

So, sin a + tan a = 4/5 + 4/3 = (12 + 20)/15 = 32/15

Answer 2

Answer:

see the attachment

Pythagoras theorem is used

and cos a=1/sec a