CBSE > Class 12 > Mathematics | CBSE Board | Homework Help

1/sinxcosx As sin^2x+cos^2x=1 => sin^2x +cos^2x/sinxcosx =>Sin^2x/sinxcosx+cos^2x/sinxcosx => Sinx/cosx + cosx/sinx =>Tanx+cotx Now, integration... => /Tanx dx+/cotx dx => Sec^2x-cosec^2x

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f(x) = { X + 1 if x is odd x-1 if x is even is both one-one &onto?

Posted by Vaishnav M 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Sin3x cosx

Posted by Priyanka Thakur 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Deeksha Singh 7 years, 1 month ago

Divide and multiple 2 in num and demo....than it will a formula 1/2$(2sin3xcosx)

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Bharat Singh Rathore 7 years, 1 month ago

What

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Find the area enclosed between two circles xsquare +ysquare =4 and ( x-2)square +ysquare =4

Posted by Himesh Sorout 7 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Deeksha Singh 7 years, 1 month ago

(x-0)^2 +(y-0)^2 = (2)^2 ------ eq 1 for circle with its centre on origin and radius equal to 2 (x-2)^2 +y^2 = (2)^2 ------------eq 2 for 2nd circle whose center is (2,0) and radius again 2 Then equat both these equation and find the intersecting point Then shade the region enclosed by these circles and find the area with the limits provided using suitable method of finding area

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evaluate integral as limit of sum Integral of (x²+3x+e^x)dx with 3 as upper limit and 1 as lower limit .

Posted by Anmol Ahuja 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Concept of relation and function

Posted by Rahul Yadav 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Chapter application of integral class 12 Exercise 8.1 question 11 I am getting 2 answer 2√3 and 8√3 pls explain.

Posted by Himansha Atluri 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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7-8

Posted by Chandan Yadav 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Integral √1+cosx/(1-cosx)5/2 Limit π/2 to π/3

Posted by Sunil Rajput 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Sunil Rajput 7 years, 1 month ago

I think. -1/6 or -8/15

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A square matrix A satisfies A^2=I-A,where I is the identity matrix.If A^n=5A-3I,find the value of n.

Posted by Ritik Chikara 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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A = [4 4] B = [3 5 8] in product of ab in what order it be

Posted by Mayank Jangid 7 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Sachin Singh 7 years, 1 month ago

Order not defined

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How many rows and columns in a table

Posted by Mayank Jangid 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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All diffrential formulas

Posted by Keshaw Ranjan 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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integral of (x+2)/(x+1)^3

Posted by Harshit Khare 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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From the differential representing family of hyperbolas having foci on x-axis and centre at the origin

Posted by Rupa Borah 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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Find the carteisan and vector equation of the line which passes through the point (-2,4,-5) and is parallel to the line given by x+3/3=y-4/5=8-z/-6

Posted by Chanchal Sheoran 7 years, 1 month ago

CBSE > Class 12 > Mathematics

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If vector a ,b and c are mutually perpendicula unit vector ,then find the value of |2a vector+ b vector+ c vector|

Posted by Rupa Borah 7 years, 1 month ago

CBSE > Class 12 > Mathematics

1 answers

Prangana Phukon 7 years, 1 month ago

Since a, b and c are mutually perpendicular unit vectors, we get a.b=0, b.c=0, a.c=0 and |a|= |b|=|c|=1 Also,|2a+b+c|2=(2a+b+c)⋅(2a+b+c) =2a⋅(2a+b+c)+b⋅(2a+b+c)+c⋅(2a+b+c) =4 a⋅a+2 a⋅b+2 a⋅c+2 b⋅a+ b⋅b+b⋅c+2 c⋅a+c⋅b+c⋅c a⋅a=|a|^2, b⋅b=|b|^2, c⋅c=|c|^2, and we know that dot product is commutative. So , |2a+b+c|2=4 |a|2+2a⋅b+2 a⋅c+2 a⋅b+|b|2+b⋅c+2a⋅c+b⋅c+|c|2 =4 |a|2+|b|2+|c|2+4 a⋅b+4 a⋅c+2 b⋅c =4(1)+1+1+4(0)+4 (0)c+2 (0) =6This further implies that, |2a+b+c| = √6

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When 3/7part of bucket is filled in one minute then how much time is required to fill remaining part of bucket

Posted by Sonia Saini 7 years, 1 month ago

CBSE > Class 12 > Mathematics