Question

if 7.2 sin a - 2.1 cos a = 0 find the value of 2 sin a + cos a​

Answer 1

Answer:

7/12

Step-by-step explanation:

Given, 7.2sin a= 2.1 and cos a =0

7.2 sin a = 2.1

sin a = 2.1/7.2

sin a = 7/24

According to the question,

2 sin a + cos a

Putting the values of sin a and cos a, then,

2*7/24 + 0

= 7/12 + 0

= 7/12

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