Question 34
TrigonometryWithout using tables, calculate the value of 1 + sec2 30°.
- A.2⅓
- B.2
- C.1⅓
- D.3/4
- E.3/7
Show the answer and explanation
Answer: A (2⅓)
Explanation
sec 30° = 2/√3, so sec² 30° = 4/3 and 1 + 4/3 = 2⅓.
Without using tables, calculate the value of 1 + sec2 30°.
Answer: A (2⅓)
sec 30° = 2/√3, so sec² 30° = 4/3 and 1 + 4/3 = 2⅓.