# गणित विषय के महत्वपूर्ण सूत्र संग्रह

Maths Formulas गणित के सूत्र

Square of numbers 11 to 30:11² = 121

12² = 144

13² = 169

14² = 196

14² = 225

16² = 256

17² = 289

18² = 324

19² = 361

20² = 400

21² = 441

22² = 484

23² = 529

24² = 576

25² = 625

26² = 676

27² = 729

28² = 784

29² = 841

30² = 900
Square root of numbers 1 to 10:

√1 = 1

√2 = 1.414

√3 = 1.732

√4 = 2

√5 = 2.236

√6 = 2.449

√7 = 2.646

√8 = 2.828

√9 = 3

√10 = 3.162
Cube root of numbers 1 to 10:

³√1 = 1

³√2 = 1.260

³√3 = 1.442

³√4 = 1.587

³√5 = 1.710

³√6 = 1.817

³√7 = 1.913

³√8 = 2

³√9 = 2.080

³√10= 2.154
Trigonometry Formulas:

cos²(x) + sin²(x) = 11 + tan²(x) = sec²(x)cot²(x) + 1 = csc²(x)cot x = 1/ tan xcsc x = 1/ sin xsec x = 1/cos xtan x = sin x/ cos xcot x = cos x/ sin xtan x = sec x/ csc xcot x = csc x/ sec xsin Ѳ = opp/ hypcos Ѳ = adj/ hyptan Ѳ = opp/ adjcsc Ѳ = hyp/ opp

sec Ѳ = hyp/ adj

cot Ѳ = adj/ opp

sin² Ѳ + cos² Ѳ = 1

tan² Ѳ + 1 = sec² Ѳ1 + cot² Ѳ = csc² Ѳ

Volume of Sphere = 4πr³/3Volume of Hemisphere = 2πr³/3Surface area of Sphere = 4πr²Volume of Cone = πr²h/3Volume of Cylinder = πr²hIf l= length, b= breadth, a,b,c= length of side, h= height:Perimeter of Rectangle = 2(l+b)Perimeter of Square = 4*aPerimeter of Parallelogram = 2(l+b)

Perimeter of Triangle = a+b+c

Perimeter of Equilateral Triangle = 3*a

Area of Square = a²Area of rectangle = l*b

Area of Triangle = h*base/2

Area of Parallelogram = h*base

Updated: March 25, 2017 — 11:44 pm
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