Prove the Identity $\frac{\sin ^{3} A-\cos ^{3} A}{\sin ^{2} A-\cos ^{2} A}=\frac{2+\sin 2 A}{2(\sin A+\cos A)}$

Q16: Use the sum identities to prove

Q17: Prove the identity: <br> <span class="ql-formula"

Q18: A golf ball is hit with

Q19: If a=8, b=10 , and

Q20: If a=10, b=8 , and

Q22: Use a sum or difference identity

Q23: For positive values of a,c and

Q24: Solve the equation <span class="ql-formula"

Q25: Prove the identity:<br> <span class="ql-formula"

Q26: Solve the inequality <span class="ql-formula"