Question 1: Find the values of the following trigonometric ratios:
Answer:
for all
[Note:
]
Question 2: Prove that:
Answer:
RHS.
Question 3: Prove that:
Answer:
RHS
Answer:
Question 5: Prove that:
Answer:
Question 6: In a , prove that:
Answer:
Hence proved.
Hence proved.
Question 7: If A, B, C, D be the angles of a cyclic quadrilateral, taken in order, prove that:
Answer:
Given
Question 8: Find from the following equations:
Answer:
Question 9: Prove that:
Answer: