Find the value of (sin30° + 4cot² 45° + sec² 60°) (cosec² 45° × sec² 30°)
Answers
Answer:
The answer to your question is explained in the attachemnt.
Answer:
78/3
Explanation:
(sin30° + 4cot² 45° + sec² 60°) (cosec² 45° × sec² 30°)
First,
(sin30° + 4cot² 45° + sec² 60°) = 1/2 + 4[1²] + 2²
1
= ----- + 4 + 4
2
1 + 8 + 8
= -------------
2
= 17/2 → 1
Next,
(cosec² 45° × sec² 30°) = [√2]² × [2/√3]²
4
= 2 × ------
3
= 8/3 → 2
Substituting 1 and 2, we get:
[17/2] × [8/3]
= 78/3