remainder theorem ICSE 2004

Use the factor theorem to factorize completely x³ + x² - 4x – 4. 

ICSE 2004

 

rebates and Discounts

The catalog price of a colour TV is Rs 24000. The shopkeeper provides a discount of 8% on the listed price. He gives a further off season discount of 5% on the balance. But a sales tax of 10% is charged on the remaining amount.

1.      Find the sales tax that the customer had to pay

2.      The final price he had to pay for the colour TV

trignometry - ICSE 2001

If 2sin A-1=0, then show that

Sin 3A = 3Sin A – 4 Sin³A

ICSE 2001

Remainder theorem - ICSE 2002

Show that (x-3) is a factor of x³ - 7x² + 15x – 9.

Hence completely factorize the expression. 

ICSE 2002