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  • 1 answers

Preeti Dabral 1 year, 8 months ago

The equation of the line joining the points (cosθ,sinθ) and (cosø,sinø) is given by,

  • 2 answers

Ankit Kumar Panda 1 year, 9 months ago

Domain= R-{±1,0} Range=(1,∞)

Ankit Kumar Panda 1 year, 9 months ago

Function should remain real so √(x²-1) should not be equal to zero so x²-1≠0 x² = 1 Or x = +1 And also it should not be equal to 0 otherwise it would be imaginary so, Then the domain will be R-{±1,0} Or(-∞, 1) U (1,∞) And range (1,∞)
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  • 2 answers

Anandi Mahajan 1 year, 9 months ago

4sinacosacos2a And further cos2a can also be used as a formula

Shubham Kumar 1 year, 9 months ago

Sin2a
  • 2 answers

Anandi Mahajan 1 year, 9 months ago

3:1

Rishab Kandwal 1 year, 9 months ago

3:1 a+18d=0 =a=-18d. Now put this value in the ratio of a+48d and a+28d.
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  • 1 answers

Aakash Verma 1 year, 9 months ago

X sin x + cos x (-x sin x + cos x - cos x )+ x cos x - sin x (x cos x + sin x)
  • 3 answers

Aakash Verma 1 year, 9 months ago

2-root3

Rinku Mehra 1 year, 9 months ago

Tan(13×180/12)= Tan195° Tan195= Tan(180+15) It is 3rd quadrent only tan and cot positive or 180° theta is no change . Then Tan15° = 2 - √3 .

Prateek Shukla 1 year, 9 months ago

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  • 3 answers

Anandi Mahajan 1 year, 9 months ago

1-cos²x

Aakash Verma 1 year, 9 months ago

1-cos^2x

Alisha Shelly 1 year, 9 months ago

Sin²x=1-cos²x
  • 5 answers

Aamir Gour 1 year, 8 months ago

Itz aamir here insta id follow me plz

Aamir Gour 1 year, 8 months ago

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Jyoti Panda 1 year, 9 months ago

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Krrish 1 year, 9 months ago

Hello

Vishnu Kumar 1 year, 9 months ago

Hii
  • 3 answers

Jyoti Panda 1 year, 9 months ago

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Jyoti Panda 1 year, 9 months ago

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.
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Veer Singh 1 year, 9 months ago

Jitne bhi example hai wo karo aur ek baar cbse sample paper ka sequence samjo ussi type ke questions kro
  • 2 answers

Rinku Mehra 1 year, 9 months ago

nth term is 5×(1/2)*n

Rinku Mehra 1 year, 9 months ago

20th term is 5/2*20
  • 0 answers
  • 2 answers

Komal Bijarniya 1 year, 10 months ago

Hello

Abhishek Poddar 1 year, 10 months ago

Hello ma'am
  • 2 answers

Shivani Sahu 1 year, 10 months ago

3

Yuki Hara 1 year, 10 months ago

x tends to????
  • 1 answers

Viaksh Kumar Viaksh Kumar 1 year, 10 months ago

Lim 2x+3
  • 4 answers

Rinku Mehra 1 year, 9 months ago

-2

Yuki Hara 1 year, 10 months ago

limx-->0(x²-tan2x)/tanx =limx-->0((x²-tan2x)/x)/tanx ={limx-->0(x)-2(tan2x)/2x}/(tanx)/x =limx-->0(x) -2(limx-->0(tan2x)/2x) /limx-->0(tanx)/x :: Using limx-->0 (tan a)/a =0 && && Putting x=0 =(0-2)/1 =-2

Yuki Hara 1 year, 10 months ago

-2

Preeti Dabral 1 year, 10 months ago

{tex}\text { Given limit }=\lim _{x \rightarrow 0} \frac{\left(x-2 \times \frac{\tan 2 x}{2 x}\right)}{\left(\frac{\tan x}{x}\right)}=\left\{\frac{0-(2 \times 1)}{1}\right\}=-2{/tex}

  • 1 answers

Preeti Dabral 1 year, 10 months ago

Take LHS 
{tex}=\frac{\tan (x+y)}{\cot (x-y)}=\frac{\sin (x+y)}{\cos (x+y)} \frac{\sin (x-y)}{\cos (x-y)}{/tex} 
{tex}=\frac{\sin ^{2} x-\sin ^{2} y}{\cos ^{2} x-\sin ^{2} y}=R H S{/tex}

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