9th & 10th Maths Formulas

Student's of class 9th and 10th if you have any doubt or any question in mathematics you can ask in comments........

For Class 9th

Algebraic Formulas 

Surface Area and Volume Formulas

For Class 10th

Maths and science 2019 papers

Mathematics Class-10 Syllabus
Maths 2018 Set-1
Maths 2018 Set-2
Maths 2018 Set-3
IMP questions chapter 3 to 5

Trigonometry Formulas for Class-10

Pythagoras Theorem:  Hypoteneous² = perpendicular² + Base²

sinA = P / H	cotA = cosA / sinA
cosA = B / H	cosecA = 1 / sinA
tanA = P / B	secA = 1 / cosA
cotA = B / P	tanA=1 / cotA
cosecA = H / P	sin(90-A)=cosA
secA = H/B	cos(90-A)=sinA
sin2A + cos2A = 1	tan(90-A)=cotA
tan2A + 1 = sec2A	cot(90-A)=tanA
cot2A + 1 = cosec2A	sec(90-A)=cosecA
tanA = sinA / cosA	cosec(90-A)=secA

Chapter wise questions