Question

5sinA+12sinA+12=?? find the maximum value​

Answer 1

-12/17

5sinA+12sinA+12=0

17sinA+12=0

17sinA=-12

sinA=-12/17

A=-sin12/17

A=-0.01231

Answer 2

Answer:

29

Step-by-step explanation:

5sinA + 12sinA + 12=

 17sinA +12

But,

-1 ≤ sinA ≥ 1

Therefore, multiplying both sides by 17 and adding 12,

 17(-1) + 12 ≤ 17(sinA) + 12  ≥  17(1) + 12

-17 + 12  ≤ 17sinA + 12  ≥  17 + 12

 -5  ≤ 17sinA + 12  ≥  29

Hence maximum value of 17sinA + 12 is 29

i.e. maximum value of 5sinA+12sinA+12=29