CBSE Guess > Papers > Question Papers > Class X > 2009 > Mathematics > Mathematics
Q. 4. Write the common difference of an A.P. whose nth term is 3n + 5. Ans . 3 Sol. nth term, an= 3n + 5 Q. 5. Write the value of
Ans . – 5 Sol.
= 5 tan2 Q. 6. In Fig. 2, ST || QR, PS = 2 cm and SQ = 3 cm. What is the ratio of the area of
Ans. 25 : 4 Sol.
CBSE 2009 Question Papers Class X |
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Common difference, d = a2 – a1 = 11 – 8 = 3 
- 5 sec2 
PQR to the area of 
