Question

If 5cot A = 6, find the value of 3 sin A - cos A
5 cos A + 9 sin A

Answer 1

Answer:

675/61

Step-by-step explanation:

cotA=6/5

tanA=5/6

sinA=5/√61

cosA=6/√61

(3sinA-cisA) (5cosA+9sinA)

(3*5/√61-6/√61) (5*6/√61+9*5/√61)

(15/√61-6/√61) (30/√61+45/√61)

9/√61*75/√61

675/61,,

hope it will help uu