Question

If a-b = -8 and ab=-12, then find the value of
^3
- ^
3
.

No spaming plz or I will report​

Answer 1

Answer:

sinA=

2

1

,cosB=

2

1

⇒sinA=sin30°,cosB=cos60°

⇒A=30°,B=60°

∴A+B=30°+60°=90°

Hence, the answer is 90°.