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Posted by Divyansh Chouhan 1 day, 16 hours ago

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Prabhat Tomar 1 day, 15 hours ago

Let 1/x be v and 1/y be u
This will give you a equation

Posted by Priyesh Arora 1 day, 18 hours ago

- 1 answers

Priyesh Arora 1 day, 18 hours ago

cotA + 1/cotA = 1
on Squaring both side
(cotA +1/cotA)^2 =(1)^2
cot^2A+ 1/cot^2A+2×cotA×1/cotA=1
cot^2A+1/cot^2A= 2-1
cot^2A+1/cot^2A =-1

Posted by Khushboo 😘 Deep 🥰 1 day, 21 hours ago

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Posted by Mandeep Kaur 1 day, 22 hours ago

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Ambika Kumari 1 day, 20 hours ago

a=k, b=6, c=1
Formula for equal roots, b²-4ac
6²-4×k×1
36-4k=0
36=4k
K=9...
😊😊😊

Chandan Bihari 1 day, 22 hours ago

Kx²+6x+1=0
a=K, b=6, c=1
D=b²-4ac
=36-4×1×k
=36-4k=0
=36=4k
=36/4=k
=9=k

A K47 1 day, 22 hours ago

if roots are equal then, then b²-4ac=0, putting values we get 6²-4k=0. So, k = 9.

Posted by Disha Soni 2 days, 3 hours ago

- 2 answers

Gunn Bhatia 2 days, 2 hours ago

=sec A(1 - sin A)(sec A + tanA)
= 1/ cos A(1-sinA)(1/cosA + sinA/cosA)
=(1- sinA)(1 + sinA)/cosA ×cosA
= 1 - sin^2 A/cos^2 A
=cos^2 A/ cos^2 A [[ since, cos^2 A + sin^2 A = 1]]
= 1

Posted by Bhoomi Mittal 2 days, 4 hours ago

- 1 answers

Gunn Bhatia 2 days, 3 hours ago

CSA: 2× pie× h(R + r)
TSA: 2× pie (R+r)( h + R -r)
VOL: pie× h(R^2 - r^2)

Posted by Sonam Yadav 2 days, 4 hours ago

- 1 answers

Gunn Bhatia 2 days, 4 hours ago

Hello,
2x +3y = 5 ------------1
4x + ky = 10 ------------2
a1 = 2, b1 = 3, c1 = -5
a2 = 4, b2 = k, c2 = -10
condition for infinite no. of solution:
a1/a2 = b1/b2 = c1/c2
So,
a1/a2 = b1/b2
2/4 = 3/k
k = 6
Then,
b1/b2 = c1/c2
3/k = -5/-10
k = 6
Therefore, value of k is 6

Posted by Tarana Panghal 2 days, 6 hours ago

- 5 answers

Kaustubh Mani Pandey 2 days, 6 hours ago

We know that
LCM =product of two numbers ÷HCF
180/3=60

Tarana Panghal 2 days, 6 hours ago

Its answer is 60
LCM ( x,y ) multiple HCF ( x,y) = xy = LCM ( x,y) multiple 3 = 180 = LCM (x,y) = 180 divided by 3 answer is 60

Posted by 💫S 😊R👑 2 days, 6 hours ago

- 3 answers

Mary Stuart 16 hours ago

Ex5.2 poori aaegi aur ex 5.3. Mein questions 15 to 20 tak cut ko gye h

Itz Raman Here ☺ 2 days, 5 hours ago

Bro , 5th chapter mein kuj bhi deleted nhi h . whole chapter paper mein ayega ..

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