Math, asked by ankushsingh98, 11 months ago

7 + 3 √5÷7-3√5=a+b√5 then find the value of a and b

Answers

Answered by Anonymous

6

Answer:

7+3√5/(3+√5) - 7-3√5/(3-√5) a + √5b

= (7+3√5)(3-√5) - (7-3√5)(3+√5)/(3+√5)(3-√5) = a + √5b

21-7√5+9√5-15-21-7√5+9√5+15/9-5 = a + √5b

4√5/4 = a + √5b

√5 = a + √5b

Comparing both left and right hand side a = 0 and b = 1

Thus a = 0 and b= 1

Previous Question

Next Question

Similar questions

English, 5 months ago

correct the form of verb within brackets the sun (set) in the west.

Physics, 5 months ago

the mass of mars is 6.39× 10 √ 23 kg and that of the Jupiter is 1.89×10√27 kg. the distance between Mars and Jupiter is 749 ×10√3 m. calculate the force exerted by the Jupiter kn the mass where G = 6.7×10√-11 NM√2 /kg√2 ...

Social Sciences, 5 months ago

"Increase in Unemployment is an indicator of a depressed economy". Do you agree with this statement? Support your answer by giving five arguments.

Physics, 11 months ago

A bullet loses 25% of its initial kinetic energy after penetrating through a distance of 2cm in a target. The further distance it travels before coming to rest is 1) 1 cm 2) 2 cm 3) 8/3 cm 4)6cm...

Physics, 11 months ago

can you think of an instance where the heating effect of electric current causes Wasteage of electricity...

Chemistry, 1 year ago

10 moles of an ideal gas expand isothermally and reversibly from a pressure of 5 atm to 1 atm at 300K. What is the largest mass that can be lifted through the height of 1 metre by this expansion?

Chemistry, 1 year ago

1 mole of $H_{2}$ , two moles of $I_{2}$ and three moles of HI are injected in a 1 litre flask, what will be concentrations of $H_{2}$ , $I_{2}$ and HI at equilibrium at 490°C ? The equilibrium constant for the reaction at 490°C is 45.9.

Chemistry, 1 year ago

2.2 g of a compound of phosphorus and sulphur has 1.24 g of P in it. Determine its empirical formula.