Question 1: Show that:

Answer:

. Hence Proved.

Question 2: Show that:

Answer:

Hence proved.

Question 3: Show that:

Answer:

. Hence proved.

Question 4: Express in terms of angles between and :

Answer:

Question 5: Express in terms of angles between and : 

Answer:

Question 6: Express in terms of angles between and : 

Answer:

Question 7:

Answer:

LHS

= RHS. Hence proved.

Question 8:

Answer:

LHS = 

= 

RHS. Hence proved.

Question 9: For , show that:

Answer:

LHS RHS. Hence proved.

Question 10:  For , show that:

Answer:

LHS RHS. Hence proved.

Question 11: In is the right angles at B. Find the value of:

Answer:

Question 12: Find if: 

Answer:

Question 13: Find if: 

Answer:

Question 14: Find if: 

Answer:

Question 15: Find the value of if: 

Answer:

Therefore

Question 16: Find the value of if: 

Answer:

Question 17: Find the value of if: 

Answer:

Question 18: Find if: $latex cos \ (2x-6^o) = cos^2 \ 30^o – cos^2 \ 60^o &s=0$

Answer:

Question 19: Find the value of : 

Answer:

Question 20: Find the value of : 

Answer:

Question 21: Prove that:

Answer:

LHS

RHS. Hence proved.

Question 22: Prove that:

Answer:

LHS

RHS. Hence proved.

Question 23: Evaluate:     [2010]

Answer:

Question 24: Without using trigonometric tables, evaluate

    [2014]

Answer: