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7th term of an AP is 40,then the sum of first 13 term is

Posted by Abhishek Kumar 8 years, 1 month ago

CBSE > Class 11 > Mathematics

3 answers

Jasmer Panjetha 8 years, 1 month ago

520

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Sonali Priya 8 years, 1 month ago

520

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Abhishek Kumar 8 years, 1 month ago

520

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ANSWER

If a-ib/a+in then find (a+b)?

Posted by Pushkar Ghugtyal 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

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Last year i failed in mathematics can i appear in 3 Subject ( English, Hindi and Mathematics) in next exam of CBSE 2018. Explain

Posted by Girish Vatsaraj 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Range of function y= cos inverse (x ^2/(1+ x^2)^1/2

Posted by Rifat Fatma 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

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sin (a+b)

Posted by Mohit Kumar 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Himangni Sahu 8 years, 1 month ago

sinA×cosB+cosA×sinB

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Find the nth term of series 1+2+3+4+.....

Posted by Pavan Bhandari 8 years, 1 month ago

CBSE > Class 11 > Mathematics

2 answers

Jayanti Gupta 8 years, 1 month ago

Here , a= 1 And ,d= 1 Tn = a +( n- 1) d Put the value of a and d and get Tn = n

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Tushar Awasthi 8 years, 1 month ago

Apply:a+(n-1)d We get nth term as n

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ANSWER

Trigonometric formula

Posted by Sonali Priya 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

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a circle has radius 3 units and its centre lies on the line y=x-1 . find the equation of the circle , if it passes from point [7, 3]

Posted by Vaibhav Yadav 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Prove this by principle of mathematical induction:- (cosA+isinA)^n=(cosnA+isinnA)

Posted by Reema Kumari 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

In triangle ABC,if A=3C,then a-c/2c=

Posted by Anusha K 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Write the next term of the following sequence (a) 2,6,12,20

Posted by Ompriya Hota 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Biki Roy 8 years, 1 month ago

4Thank You

ANSWER

Hans mat pagli

Posted by Mini Singhal 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Naruto Uzumaki 8 years, 1 month ago

Be serious bro

3Thank You

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If a minus either be upon A + 8 MB equals to 1 + 8 upon 1 minus 8 hour then find a + b

Posted by Akanksha Shakshi 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

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If a-ib =1+i then find (a+b). a+ib. 1+i

Posted by Akanksha Shakshi 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Dipens Rajput 8 years, 1 month ago

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If a-ib =1+i then find (a+b) a+ib. 1-i

Posted by Akanksha Shakshi 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Dipens Rajput 8 years, 1 month ago

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The ratio of Sum of nth term of two arithmetic progression (3n+8):(7n+15) what is the ratio of 12th term

Posted by Shivansh Shrivastava 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

In a survey of 400 students in a school,100 were listed as taking apple juice ,150 as taking orange juice and 75 were listed as taking both apple as well as orange juice. Find how many students were taking neither apple juice nor orange juice.

Posted by Yashdeep Shingh 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

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Limx_infinet X3-ax +4/3x2-bx +7

Posted by Kajal Jeenger 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

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What are all the most important question in the chapter conic section

Posted by Kalaichelvan Kalaichelvan 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

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Limit x4-3x3+2 byx3-5x2+3x+1 Xtends to0

Posted by Sneh Kumar Soni 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Can there is a infinity no.

Posted by Dev Bhatia 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Tan2A-sin2A=tan2A×sin2A

Posted by Shivani Harariya 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Lesson 9 solution of all question class 11

Posted by Madhav Madhav 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Jayanti Gupta 8 years, 1 month ago

NCERT solutions are given on net already so, you can search their

1Thank You

ANSWER

Can anyone split 3n square-53n+232=0

Posted by Anamika Rajput 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Rahul Poddar 8 years, 1 month ago

3n2-53n+232=0....3n2-24n-29n+232=0...... 3n (n-8)-29 (n-8)=0..... (3n-29)(n-8)=0....... 3n=29, n=8....n=29/3..n=8.

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ANSWER

Find value of (a²+√a²-1)⁴+(a²-√a²-1)⁴

Posted by Sanjay Krishna 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

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Prove that 1/secA-tanA -1/cosA= 1/cosA&1/secA+tanA

Posted by Ishika Garg 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find the foot of the perpendicular drawn from the point {2,3} yo the line 3x-4y+5.also, find the image of (2,3) in the given line

Posted by Tushar Kumar 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Logarithm

Posted by Shrishti Priya Sinha 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

In any Quadrilater find value of sin (A+B) + sin (C+D)

Posted by Abhishek Prajapati 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Nikhil Science 8 years, 1 month ago

In quadrilateral, A+B+C+D=360 A+B=360-(C+D) sin(A+B)=sin{360-(C+D)} sin(A+B)= -sin(C+D) sin(A+B)+sin(C+D)=0 Ans.

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Q.1 Show that the sum of (m+n)th and (m-n)th term of an A.P. is equal to twice the mth term??

Posted by Shubham Shukla 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

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