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After the tremendous success of our last year Important Questions Bank for Bihar Class 12 Intermediate (HSC) Board Exam 2016, 2017 and 2018 we have also created a list of **Most Important Questions Bank for Bihar Class 12 Intermediate (HSC) Board Exam 2019** which are likely to appear in HSC Board Exams this year.

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Bihar Math question:

- Differentiate the function with respect to x ()
- Maximize Z= -x+2y, subject to the constraints: x>2, x+y>5 ,y>0
- Find the determinants of
- Is the function f defined by f(x)= continuous at x=0 or x=1 or x=2 ?
- A box of oranges is inspected by examining three randomly selected oranges drawn without replacement. If all the three oranges are good, the box is approved for sale, otherwise , it is rejected. Find the probability that a box containing 15 oranges out of which 12 are good and 3 are bad ones will be approved for sale.
- Find the inverse of
- Derive the condition for the co planarity of two lines in space both in the vector form and Cartesian form.
- Is h(x) = (5×2 + 7x + 2) / x3 + x2 + x + 3 a continuity function?
- In a dice game, a player pays a stake of Re.1 for each throw of a die. She receives Rs.5 if the die shows a 3 , Rs.2 if the die shows a 1 or 6 and nothing otherwise. What is the player’s expected profit per throw over a long series of throws?
- Evaluate .
- Find the Cartesian and vector equation of the line that passes through the points (3,-2,-5) and (3,-2,6).
- solve by product rule
- If P(A)=0.8, P(B)=0.5 and P(B/A)=0.4. Find (i) P(A intersection B). (ii) P(A given B). (iii)P(A union B).
- Solve
- A black and a red dice are rolled. Find the conditional probability of obtaining a sum greater than 9, given that the black die resulted in a 3.
- Differentiate with respect to y = (5x – 3) ^ x
- Find all the points of discontinuity of f, where f is defined by

f(x)= - Solve the following system of equations by matrix method,

3x-2y+3z=8 ; 2x+y-z=1 and 4x-3y+2z=4.

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