Math Formulas for Class 11

Math Formulas for Class 11

It’s quite common amongst students to find Maths as a difficult subject and find it hard to master. Many students of CBSE class 11 are phobic about math formulas, because of their negativity towards the subject and cannot focus or concentrate on math problems. Students have the most trouble before exams or even small class tests; that’s when nervousness kicks in. Due to the negativity and resentment towards math, most students fail their exams.

The only way students can get rid of the subject is by learning to get a strong grip on the maths formula. If students can do their best to be positive about maths formula, then they can achieve the kind of marks they desire. All those students need to do is to understand the concepts, learn all the necessary math formulas, apply these formulas according to the problem and then find the solution to that particular question.

List of Maths Formulas for 11th Class

Here is a list of Maths formulas for CBSE class 11.

Coordinate Geometry & Line Formula

Coordinate Geometry & Lines Formulas for Class 11
Distance Formula	|P1P2|=(x2−x1)2+(y2−y1)2−−−−−−−−−−−−−−−−−−√
Slope	m=riserun=ΔyΔx=y2−y1x2−x1
Point-Slope Form	y−y1=m(x−x1)
Point-Point Form	y−y1=y2−y1x2−x1(x−x1)
Slope-Intercept Form	y=mx+b
Intercept-Intercept Form	xa+yb=1
General Form	Ax+By+C=0
Parallel & Perpendicular Lines	Parallel Lines m1=m2 Perpendicular Lines m1m2=−1
Distance from a Point to a Line	d=|Ax0+By0+C|A2+B2−−−−−−√

Algebra Formula-

Algebra Formulas For Class 11
Distributive Property	a×(b+c)=a×b+a×c
Commutative Property of Addition	a+b=b+a
Commutative Property of Multiplication	a×b=b×a
Associative Property of Addition	a+(b+c)=(a+b)+c
Associative Property of Multiplication	a×(b×c)=(a×b)×c
Additive Identity Property	a+0=a
Multiplicative Identity Property	a×1=a
Additive Inverse Property	a+(−a)=0
Multiplicative Inverse Property	a⋅(1a)=1
Zero Property of Multiplication	a×(0)=0

Trigonometric Formula-

Trigonometry Class 11 Formulas

sin(−θ)=−sinθ

cos(−θ)=cosθ

tan(−θ)=−tanθ

cosec(−θ)=−cosecθ

sec(−θ)=secθ

cot(−θ)=−cotθ

Product to Sum Formulas

sinx siny=12[cos(x–y)−cos(x+y)]

cosxcosy=12[cos(x–y)+cos(x+y)]

sinxcosy=12[sin(x+y)+sin(x−y)]

cosxsiny=12[sin(x+y)–sin(x−y)]

Sum to Product Formulas

sinx+siny=2sin(x+y2)cos(x−y2)

sinx−siny=2cos(x+y2)sin(x−y2)

cosx+cosy=2cos(x+y2)cos(x−y2)

cosx−cosy=–2sin(x+y2)sin(x−y2)