Currently formulas of class 11
Answers
Answer:
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)