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  • 1 answers

Muskaan Syed 2 years, 8 months ago

Let's assume that √2 + √5 is a rational number. √2+√5=a/b Sq. On both sides =2+5+2√10= a^2/b^2 2√10=a^2/b^2 -7 2√10=a^2-7/b^2. √10=a^2-7/2b^2 . It's a fact that √10 is irrational. Hence our assumption that √2+√5 is rational is incorrect..... Hence, √2+√5 is irrational
  • 1 answers

B 01 Rojalin Behera 2 years, 8 months ago

Let assume that √2 is rational So, √2=a/b (a and b are positive co-prime number and b is not equal to 0) i.e. HCF (a,b)=1 b√2=a Squaring both the sides, we get (b√2)^2=a^2 =2b^2=a^2....(i) =b^2=a^2/2 =a^2/2 (if P is a prime number, if P divides a^2 then P divides a) =a/2 So, a=3c for some integer c Putting a=2c in equation (i) 2b^2=(2c)^2 =2b^2=4c^2 =b^2=2c^2 =b^2/2=c^2 =b^2/2 (If P is a prime number, if P divides a^2 then P divides a) =b/2 So, a and b have another prime factor 2 But this contradicts the fact that a and b are co-prime number. This contradiction has arisen due to our incorrect assumption. So, √2 is an irrational number. Hence, proved.
  • 0 answers
  • 1 answers

Sourav Singh 2 years, 8 months ago

-0.133974596
  • 3 answers

Sourav Singh 2 years, 8 months ago

α2+β2=a2b2−2ac

Ashish Ashish 2 years, 8 months ago

Paper to easy hota hai ya hard

Ashish Ashish 2 years, 8 months ago

Sir mai 10th compartment kar rha hu
  • 1 answers

Muskan Saha 2 years, 8 months ago

The destruction caused by the hailstorm on lencho filled was devasting. The hailstorm rain on the value for several hours and lencho's field was completed destroyed.
  • 5 answers

Niraj Kumar 2 years, 8 months ago

Organisms which depend on other organism for their food and it does not have ability to prepare their own food

Srijoy Roy 2 years, 8 months ago

Organisms which depend directly or indirectly on other organisms for their food

Ansh Yadav 2 years, 8 months ago

Organisms which depand on other organisms for their food

Suman Jha 2 years, 8 months ago

Heterotrophic are those who depend on other organism they can't make their own food

Muskan Saha 2 years, 8 months ago

The plants that cannot make their food by using photosynthesis process.they depend on other living organisms.
  • 1 answers

Muskan Saha 2 years, 8 months ago

Hemoglobin present in blood aids in the transportation of this gases the blood serve as a transfer system for both carbon dioxide and oxygen is carried to the cell where is carbon dioxide is carried away from the cells...
  • 2 answers

Sravya Sudhagoni 2 years, 8 months ago

2Al2O3 ---------4Al+3O2

B 01 Rojalin Behera 2 years, 8 months ago

2Al2O3_____4Al+3O2
  • 5 answers

Ananya Jha 2 years, 8 months ago

It is necessary to balance an equation in order to follow the law of conservation of mass which says that mass can neither be created nor be destroyed in a chemical reaction it can only change its state... The sum total of both the masses(LHS and RHS)are equal before and after the reaction.

Ansh Yadav 2 years, 8 months ago

Because of law of conservation of mass

Suman Jha 2 years, 8 months ago

Due to law of conservation of mass which states that mass can neither be created nor be destroyed in a chemical reaction that's why it is necessary to balance a chemical equation

Ayush Mohanty 2 years, 8 months ago

In order not to violate the law of conservation of mass..

Aspirant Aspirant 2 years, 8 months ago

It is necessary to balance a equation to follow law of conservation of mass. That says that mass can neither be created nor be destroyed in a chemical reaction.
  • 1 answers

Manya Malik 2 years, 8 months ago

Lencho thinks that post office employees are a bunch of crook
  • 2 answers

Manya Malik 2 years, 8 months ago

Lencho had a great faith in God.. when his crop got destroyed and he wrote a letter to God tells that he had faith in God

Jatin Singh 2 years, 8 months ago

Ans
  • 1 answers

B 01 Rojalin Behera 2 years, 8 months ago

6=2×3 72=2×2×2×3×3 120=2×2×2×3×5 HCF(6,72,120)=2×3 =6 LCM(6,72,120)=2^3×3^2×5 =8×9×5 =360

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