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 - 5 sec2 Q. 6. In Fig. 2, ST || QR, PS = 2 cm and SQ = 3 cm. What is the ratio of the area of PQR to the area of PST? Ans. 25 : 4 Sol. PQR and PST
CBSE 2009 Question Papers Class X |