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CBSE Questions

Total Questions 9982
If alpha and beta are the zeroes of x2+7x+12,then find the value of 1/alpha + 1/beta-2alpha×beta.
From a quadratic polynomial p(y) with sum and product of zeros as 2 and (-3)/5 respectively. (2 marks)
what is plasmolysis
Find a quadratic polynomial whose zeroes are 3+?5 and 3-?5 (2 marks)
What must be added to the polynomial f(x)= x4+2x3-2x2+x-1 so that the resulting polynomial is exactly divisible by x2+2x-3 (2 marks)
Find a quadratic polynomial with zeroes 3+?2 and 3-?2 (2 marks)
Divide 6x3+13x2+x-2 by 2x+1 and find quotient and remainder(2 marks)
how to test ph of a bath soap by titration?is there any other easy method to find the ph of soap?
at the sea shore we have the sun just above our head but why does'nt we feel hotness there?
i didnt understand how to balance the chemical equation ?
WHY LONDON IS KNOWN AS FINISHING CENTER?
WHAT IS ELECTROLYSIS?
WHAT IS BINARY FISSION?
solve for x and y ax-ay=2, (a-1)x+(a+1)y=2(a2+1) (2 after variable denotes square)
WHAT ARE THE DIFFERENCE BETWEEN THE DISCOVERY OF PIE FOUNDED BY ARYABATTA AND ARCEMEDIS
I WANT TO DO A INVESTIGATORY PROJECT.I HAVE CHOSEN THE TOPIC TESTING OF ALKALINITY IN SOAP.CAN YOU SUGGEST ME HOW TO DO IT IN THE LAB?
what is actually inverse of matrix?how to find it? please explain briefly?
WHO IS LOUIS XVI ??
HOW TO BALANCE A CHEMICAL EQUATION????????????
WHAT IS ELETRICITY?