Math, asked by subhojitganguly203, 8 months ago

Please help me to solve all the questions..
I need the correct answers.
please don't spam​

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Answers

Answered by mk7477214
0

Answer:

4. y=60°

हम जानते हैं कि रैखिक युग्मों के कोणों का योग 180° होता है।

अतः,

2x+y=180

2x +60=180

2x = 180-60

2x =120

x = 120

2

x=60

Answer of your question

5. (4,0)

x-2y=4

x=4, y=0

. 4-2×0=4

4-0=4

4=4

अतः पहला समीकरण का हल है ।

(0,2)

x=0,y=2

x-2y=4

0-2×2=4

2×2=4

4=4

अतःदूसरा समीकरण भी इसका हल है।

6. i) -2x+3y=6

ax+by+c=0

-2x +3y -6=0

so,

a=-2, b=3,c=-6 answer

ii) x=3y

-2x-3y=6

puting the value of x

-2×3y-3y=6

-6y-3y=6

9y=6

y= 6

9

y= 2

3

Answer of your question

7.coeficient of x^2

i) 1

ii) 0

8.5x^2-4x+3

x=2

5 (2)^2-4 (2)+3

5 (4)-8+3

20-8+3

12+3

15 answer

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