x+y=a+b ax+by= a^2_b^2 solve x and y
Answers
Answer:
x = (a +b ) (a - 2b)/(a - b) , and y = (a+b) * b/(a-b).
Step-by-step explanation:
given two dimensional two variable linear algebraic equations are
x + y = a + b --- (1)
=> y = (a+b - x) --- (3)
a x + b y = a² - b² --- (2)
substituting (3) in (2) we get:
a x + b (a+b - x) = a² - b²
x (a - b) = a² - b² - b (a+b)
= (a+b) [ a - b - b]
= (a+b) (a - 2b)
x = (a +b ) (a - 2b)/(a - b) --- (4)
Substituting this in (3) we get:
y = (a + b) - (a +b) (a -2b)/(a-b)
= (a+b) [ 1 - (a-2b)/(a-b) ]
= (a+b) * b/(a-b).
Answer.
Step-by-step explanation:
Required Answer:-
A – 405, Vijay Laxmi Apartments, Lajpat Nagar, Delhi
Date - 18 - 2 - 2021
ABC address (receiver's address)
Dear Abhinav
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What is a letter?
⟶ A letter is a form of written communication which is given to another person telling, asking or complaining about any purpose.
⟶ Letter was widely used in olden times of India. It took them few days to reach another address.
2 types of letters :-
1] Formal letter :-
Formal letters are written to any official people, like police, principal, teacher, governor, mayor, etc.
→ We use Formal language in this, and use formal greeting like respected/sincerely,etc.
2] Informal letter :-
→ Informal letters are written to your near and dear ones for eg; Uncle,aunt, brother, sister.
→ Language is always formal, like dear, etc.
Format of letter -
1. Formal letter -
Sender's address
---
Date
---
Reciever's address
---
Subject
---
Salutation (Respected sir/ma'am)
Content
---
Salutation 2 (Your sincerely)
Your name
Informal letter -
Sender's address
---
Date
---
Reciever's address
---
Subject
---
Salutation (Dear.)
Body
---
Salutation 2 (your lovingly)
Your name