Profile | Dipanker Mehata | Dehradun | Innovayz

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Dipanker Mehata

teacher | Maths Physics Chemistry

Address
,
Dehradun -
Uttarakhand , India
Contact No

Description

Hi i am an experienced teacher. I teach student of class 10th to 12th physics , chemistry and maths.

Qualification

Class XII

Experience

5-7 Years

Teaching Classes

11-12

Current Organization

Dipanker Mehata 14 Sep, 2018

Solution of Triangle (Sine Rule and Cosine Rule)

1.Introduction :

In any triangle three sides and angle of three sides are called element of a triangle.When three elements are given and processing of other element called Solution of Triangle.

In any triangle ABC :

A+B+C = 180 degree
a+b>c ,b+c>a, a+c>b
a,b,c>0

SINE RULE:

In any triangle ABC

$\frac {a} {\sin {A}}=\frac {b} {\sin {B}}=\frac {c} {\sin {C}}\, i.e\, sine\, of\, angle\, are\, prapotional\, to\, opposite\, sides$

Cosine Rule:

$in\, \Delta ABC\, we\, have\, \cos {A}=\frac {{b}^{2}+{c}^{2}-{a}^{2}} {2bc},\, \cos {B}=\frac {{a}^{2}+{c}^{2}-{b}^{2}} {2ac},\cos {C}=\frac {{a}^{2}+{b}^{2}-{c}^{2}} {2ab}$

where a,b,c are sides and A,B,C are angle of triangle

Dipanker Mehata 13 Sep, 2018

MATHEMATICS SHORT TRICKS - Trigonometry Method of Substitution

Dipanker Mehata 13 Sep, 2018

MATHEMATICS SHORT TRICKS - Arithmetic expression

Dipanker Mehata 13 Sep, 2018

Mathematics Short Tricks - Quadratic Equations

No Active Challenge

Dipanker Mehata

what is Moissan boron ?

Dipanker Mehata

A fire of lithium, sodium and potassium can be extinguished by?

Dipanker Mehata

An arch is in the form of semi-ellipse. It is 8m wide and 2m high at the centre. Then, the height of the arch at a point1.5m from one end is?

Dipanker Mehata

Coefficient of variation of two distributions are 60 and 70,and their standard deviations are 21 and 16, respectively.Their arithmetic means are?

Dipanker Mehata

A body initially at 80°C cools to 64°C in 5 minutes and to52°C in 10 minutes. The temperature of the body after 15minutes will be ?

Dipanker Mehata

What is Simple Harmonic Motion? Explain?

Dipanker Mehata

A school has four sections of chemistry in class XII having40, 35, 45 and 42 students. The mean marks obtained inChemistry test are 50, 60, 55 and 45 respectively for the four sections, the over all average of marks per students is

Dipanker Mehata

t very high temperatures vibrational degrees also becomes active. At such temperatures an ideal diatomic gas has a molar specific heat at constant pressure, Cp is?

Dipanker Mehata

The radius of curvature of a thin plano-convex lens is 10 cm(of curved surface) and the refractive index is 1.5. If theplane surface is silvered, then it behaves like a concavemirror of focal length?

Dipanker Mehata

A ball is thrown upward with initial velocity v0 = 15.0 m/s atan angle of 30° with the horizontal. The thrower stands nearthe top of a long hill which slopes downward at an angle of20°. When does the ball strike the slope ?

Dipanker Mehata

Dimensionally wavelength is equivalent to?