CBSE Guess > Papers > Important Questions > Class XI > 2010 > Maths > Maths By Mr. Anil Kumar Tondak
CBSE CLASS XI
Trigonometric Functions
Q.1. Find the degree measure corresponding to the following radian measures (Usep = 22/7):
(i) 
(ii) -3)c
(iii) 11c
Q.2. Find the radian measure corresponding to the following degree measures:
(i) -300° (ii) 7° 30° (iii) 125° 30°
Q.3. Find the values of the following trigonometric ratios:
(i) sin 
(ii) sin 3060°
(iii) cosec (-1200°)
(iv) tan (-585°)
(v) sin 4530° sin
Q.4. Find the value of tan
.
Q.5. Find the value of tan
.
Q.6. Find tan150 and hence show that tan150 + cot150 = 4.
Q.7. Evaluate: sin 130° Cos 110° + Cos 130° sin 110°
Q.8. Find the value of 
.
Q.9. Show that:
cosec3
,
.
Q.10. Prove that: tan 560 = 
Q.11. Prove: tan150 + tan300 + tan150.tan300 = 1.
Q.12. Prove that: 
Q.13. In a right triangle, the difference between two acute angles is p/18. Express the angles in degrees.
Q.14. The minute hand of a watch is 1.5 cm long. How far does its tip move in 40 minutes.
Paper By Mr. Anil Kumar Tondak
Email Id : anil_tondak@yahoo.com
Ph No.: 9811363962
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