Question

If A lies in the 3rd
quadrant and
3tan – 4 = 0,then
3 sinA + 4 COSA
is equal to:
[2 marks]
0
24
5
- 24
5
None of these​

Answer 1

Step-by-step explanation:

tanA = 4/3

h=√{16+9)=5

sinA=p/h=4/5

cosA=3/5

3 sinA + 4 COSA

3×4/5+4×3/5

12/5+12/5

24/5