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sir how to easily learn trigonometry formulas because i forget

Posted by Ghanshyam Maitry 8 years ago

CBSE > Class 11 > Mathematics

2 answers

Mannu Mangali 8 years ago

Learn them with help of diagrams .!

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Manjeet Singh 8 years ago

Once do derivation of the formulas formula of sin (a+b)=sina cos b+cos a sin b

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If S1, S2 ,S3 ....sm are the sum of n term of an A. P whose first term are 1, 2, 3 ....m common difference are 1, 3, 5 ....(2m-1)respectively. Show that S1 +S2+....Sm=mn/2 (mn+1)

Posted by Adnan Khan 8 years ago

CBSE > Class 11 > Mathematics

1 answers

Manjeet Singh 8 years ago

There answer will be longer Bro. .some please see in cbse guide

2Thank You

ANSWER

(a+b)²

Posted by Utpal Padi 8 years ago

CBSE > Class 11 > Mathematics

1 answers

Utpal Padi 8 years ago

A²+2ab+b²

3Thank You

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Find the length of the perpendicular from the point (4,-7)to the line joining the origin and the point of intersection of the lines 2x-3y+14=0 and 5x+4y-7=0

Posted by Amit Kumar 8 years ago

CBSE > Class 11 > Mathematics

1 answers

Amit Kumar 8 years ago

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tan A=m/m+1andtan B=1/2m+1 prove that tan A+tan B+tanAtanB

Posted by Harish S 8 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

(a-b) 2

Posted by Vb Vikas 8 years ago

CBSE > Class 11 > Mathematics

2 answers

Srishti Sharma 8 years ago

2a-2b

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Mannu Mangali 8 years ago

( a+b)(a-b)

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What is happen that 2 or more line each other

Posted by Altaf Raja 8 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

The sum of first four terms of an AP is 56.The sum of last four terms is112 if it's first term is 11 find the total number of terms in AP

Posted by Shubham Kumar 8 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

TanA cotA/2 -1 = sec A

Posted by Akanshi Crs 8 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

G.p. miscellaneous exercise and p and c

Posted by Nikhil Shukla 8 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Reduce the following equations into normal form.Find their perpendicular distance from the origin and angle between perpendicular and the positive x-axis. 1.x-root3y+8=0 2.y-2=0 3.x-y=4

Posted by Prabhat Yadav 8 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Sin2x+a-cos3x-ab×tanx finds its derivatio

Posted by Harsh Pandey 8 years ago

CBSE > Class 11 > Mathematics

0 answers

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Expand the expression (1+x+x^4)^4

Posted by Aakash Deep 8 years ago

CBSE > Class 11 > Mathematics

1 answers

Mannu Mangali 8 years ago

For a streamline flow the sum of pressure ,kinetic energy per unit volume and the potential energy per unit volume remain constant.

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What is the value of o!(o factorial )

Posted by Yuvraj Patel 8 years ago

CBSE > Class 11 > Mathematics

3 answers

Rakhi Bhandari 8 years ago

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Prabhat Yadav 8 years ago

1Thank You

Deepti Choudhary 8 years ago

1Thank You

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In how many can 5 sportmen be selected from a group of 10

Posted by Dewanshu Dewanshu 8 years ago

CBSE > Class 11 > Mathematics

2 answers

Manjeet Singh 8 years ago

252

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Prabhat Yadav 8 years ago

Because of surface tension

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Sin2x+tan2x=sin2x+tan2x

Posted by Arjun Kumar Yadav Yadav 8 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Bfdjawhjijjufdd Rahul

Posted by Sohan Kumar 8 years ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is fraction

Posted by Himanshu Singh 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Manjeet Singh 8 years ago

The forc which opposes motion

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Let f={(x, x^2/1+x^2):x € R} be a function from R into R. Find range (f).

Posted by Naveen Kumar 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Formula to find foci of ellipse

Posted by Deepak Kumar Singh Singh 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Srishti Sharma 8 years, 1 month ago

c sq. = a sq. - b sq.

1Thank You

ANSWER

Find the equation of the circle for which the point (1,2), (4,6) are the end points of diameter

Posted by Gowtham R 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Pythagoras formula

Posted by Sourav Shukla 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Manjeet Singh 8 years, 1 month ago

H^2=p^2+b^2???

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ANSWER

The equation of tangent to the circle x^2+y^2=25 padsing through (-2,11)

Posted by Hero Hey 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is the difference between integration and summation?

Posted by Himanshu Saini 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Manjeet Singh 8 years, 1 month ago

When there are changes we do integration but for the sum we use summation

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Coefficient of x*2 in (3x-1/x)*6

Posted by Rana Shaheen Qureshi 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

how to find roots with duscriminant method

Posted by Simar Singh 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Shivam Pal 8 years, 1 month ago

Roots= {-b+√D}÷2a,where D=b×b -4ac

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Find equation of hyperbola whose focis are (6,-4) and (-4,4) and eccentricity is 2.

Posted by Komal Bansal 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

A and B are two non empty sets so n(A) greater than n(B) . The difference of the cardinal number of their power set is 448 . Find the number of elements of B

Posted by Esha Das 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Manjeet Singh 8 years, 1 month ago

It's process will be long dear Esha ji

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ANSWER

(n-3)!/(2n-3)!=11

Posted by Monish Jassum 8 years, 1 month ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Four terms are in g.p th

Posted by Gaurav Mukesh 8 years, 1 month ago

CBSE > Class 11 > Mathematics

1 answers

Paras Kushwaha 8 years, 1 month ago

A/(R2),a(r),ar,ar2

2Thank You

ANSWER

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