```                   if median of triangle are 5cm,6cm,7cm then find the area
```

2 years ago

Share

```                    In case of mediansRemember the following formulae$A=(4/3)\sqrt{s_{m}(s_{m}-m_{1})(s_{m}-m_{2})(s_{m}-m_{3})} \\$Arun KumarIIT DelhiAskiitians Faculty
```
2 months ago

More Questions On Analytical Geometry

Post Question

Vouchers
To Win!!!
prove that four straight lines represented by the equation 12x 2 +7xy -12y 2 =0 and 12x 2 +7xy -12y 2 -x +7y -10 form a square

Hello Student, 12x 2 +7xy -12y 2 =0 12x 2 +7xy -12y 2 -x +7y -10 with first x=(-7y +- yroot(49+144*4))/24 you will get 2 lines from here with second do the same thing x=(-7y+1 +-...

 Arun Kumar one month ago
If the angle between the two straight lines represented by 2x 2 +5xy+3y 2 +7y-98=0 is tan -1 m then find m.

required angle is tan -1 {2squareroot(h 2 -ab)/a+b}=tan -1 {2squareroot(25/4-6)/9} =tan -1 (1/9) so m=1/9 Thanks & Regards Sunil Raikwar askIITians Faculty

 Sunil Raikwar one month ago
general solution of tan x+tan4x+tan7x=tanxtan4xtan8x

 Jitender Singh 3 days ago
prove that the function f:R on Rdefined as f(x) = (x-1)(x-2)(x-3) is onto but not one - one.let a real valued function f be defined as f(x) = e to the power x + e to the power -x/e to the...

hi A1) f:R ON R means domain R is mapped to codoamin R it''s domain is R and range also is R (it''s a polynomial function it''s domain and range both are R) so range = codomain that''s why...

 jitender lakhanpal 10 months ago

For first part, notice that f(+inf) = inf and f(-inf) = -inf Since f is continuous, therefore all points in (-inf, +inf) have a pre-image. So function is onto. Its not one-to-one because...

 India VK 10 months ago
intigration of (e^(x/2) sin(x/2+pi/4)) in the interval of [0,2pi]

an easier method is to take x/2 as t. Then dx=2d. The form it takes then will be like -- 2*[integral of (e^t(sin(t+pi/4))). Now expand sin(t+pi/4) as sinAcosB+cosAsinB. sin pi/4=cos pi/4=...

 Parth 3 months ago

we must use integration by parts. take e^(x/2) as first part and sin(x/2 + pi/2) as second part. interval [0,2pi] changes to 2*(integral 0 to pi/2). here comes the answer.

 manasa gorthy 3 months ago
View all Questions »