Math, asked by lishireddy736, 1 month ago

for all natural n,(n^2-1)is always divisible by​

Answers

Answered by 10b36saheerkhan
1

Answer:

Correct option is

D

x

2

+y

2

=a

2

Let the point on locus be (x,y)

∴ (x−ak)

2

+y

2

=k

2

[(x−a/k)

2

+y

2

]

⇒x

2

+a

2

k

2

−2axk+y

2

=k

2

[x

2

+

k

2

a

2

−2

k

ax

+y

2

]

⇒x

2

+y

2

=k

2

[x

2

+y

2

]−a

2

k

2

+a

2

⇒[x

2

+y

2

][k

2

−1]=a

2

[k

2

−1]

⇒x

2

+y

2

=a

2

[D]

Answered by Anonymous
4

Step-by-step explanation:

11

भाई-

तात, अनुज, अग्रज, भ्राता, भ्रातृ।

12

अंबर

आकाश, आसमान, गगन, फलक, नभ

13

अटल

अविचल, अडिग, स्थिर, अचल।

14

अनमोल

अमूल्य, बहुमूल्य, बेशकीमती।

15

अनाथ

तीम, लावारिस, बेसहारा, अनाश्रित।

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