Lesson3. T-ratios of Some Particular Angles(घर के लिए ट्यूशन रांची )
2nd page
C. W
1. Evaluate sin 30° + cos 30°
Ans: (√3 + 1 )/ 2
2. Evaluate tan30° tan60°
Ans: 1
3. Evaluate sec^2 60° / tan 45°
Ans: 4√2
H. W
1. Evaluate sec 60° + sin 30° + cos^2 60°
Ans. 11/4
2. Evaluate cot 60° cot 30° tan 45°
Ans: 1
2. Evaluate Sin90° / cos30°
Ans: 2/√3
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