____________________ our long absence ___________________ school, we have realised
____________________ true worth ______________________ school-life.
Answers
Explanation:
\huge \orange{ \overbrace{ \red{\underbrace \color{blue} {\underbrace \color{black}{\colorbox{lime}{ {\red \: {☘Answer ☘ }}}}}}}}
☘Answer ☘
✪QUESTION✪:-
if a and b are the roots of the equation 5x² - 3x -2 =0 find the value of a³ + b³
✪ANSWER✪:-
\boxed{\sf{ 5x² - 3x -2 = 0}}
5x²−3x−2=0
it is in the form of px² + qx + r = 0
here ,
p = 5
q = -3
r = -2
➠sum of the roots = a + b = -q/p
➠a + b = -(-3)/5
➠a + b = 3/5 ➜(1)
➠a = 3/5 - b ➜(2)
➠Product of roots = ab = r/p
➠ab = -2/5
➠(3/5 - b) b = -2/5 [from (2)]
➠(3b - 5b²)/5 = -2/5
➠5b² -3b -2 = 0
➠5b² -5b +2b -2 = 0
➠5b (b-1) +2 (b-1) = 0
➠(b-1) (5b+2) = 0
➠b-1 = 0
➠\boxed{\sf{ b=1 }}
b=1
➠5b + 2 = 0
➠5b = -2
➠\boxed{\sf{ b = -2/5 }}
b=−2/5
(1)➜ a + b = 3/5 [from (1)]
➠a - 2/5 = 3/5
➠a = 3/5 + 2/5
➠a = 5/5
➠\boxed{\sf{ a = 1 }}
a=1
➠a³ + b³
➠(1)³ + (-2/5)³
➠1 - (8/125)
➠125-8 /125
➠\boxed{\sf{117 / 125 }}
117/125
Explanation:
Reserve Bank of India (RBI) is the central bank of the country. RBI is a statutory body. It is responsible for the printing of currency notes and managing the supply of money in the Indian economy. Initially, the ownership of almost all the share capital was in the hands of non-government shareholders.