Mathematics: Post your doubts here!

[RoOkaYya G]

thanx u solved it on time have test tomorrow
thanx a lot

welcome
whn u see big powers don get afraid
always try with disguised funtions

 

[Glory Hunter]

welcome
whn u see big powers don get afraid
always try with disguised funtions

lol ok thnx

 

[RoOkaYya G]

lol ok thnx

welcome
it works for all types of questions...even binomial n all ok?

 

[Glory Hunter]

i)
equate both equations (solve simultaneously)

2x^5 + 3x^3 = 2x
2x^5 + 3x^3 - 2x =0

x ( 2x^4 + 3x^3 - 2 ) = 0

x=0 and ( 2x^4 + 3x^3 - 2 ) = 0

( 2x^4 + 3x^3 - 2 ) = 0 [HENCE SHOWN]

ii)
let x^2 = y
2y^2 + 3y -2 = 0

solver for y
y= x^2
replace for the values u got as y
solve for x

the last part where like y values are 0.5 and -2 so is that final ans or like what shld we do next

 

[Glory Hunter]

welcome
it works for all types of questions...even binomial n all ok?

binominal whats that

 

[Wkhan860]

0.5 is the fynal answer.....-2 can't be solved as square root of -2 can't be done

 

[RoOkaYya G]

the last part where like y values are 0.5 and -2 so is that final ans or like what shld we do next

u replaced x^2 as y

so now y= 0.5 or y= -2

so it means x^2 = 0.5 or x^2 = -2

x= square root 0.5 and for x= square root -2 -----> no solution so u reject ths one

 

[Wkhan860]

y=x^2
0.5=x^2
So x=+071 nd - 0.71

 

[RoOkaYya G]

binominal whats that

binominal nhi yaar
binomial theorem. u dunno?

 

[Glory Hunter]

0.5 is the fynal answer.....-2 can't be solved as square root of -2 can't be done

u replaced x^2 as y

so now y= 0.5 or y= -2

so it means x^2 = 0.5 or x^2 = -2

x= square root 0.5 and for x= square root -2 -----> no solution so u reject ths one

y=x^2
0.5=x^2
So x=+071 nd - 0.71

thanx a lot

 

[Wkhan860]

Glory Hunter Bionimal is anothr chap of Maths P1...will be doin aftr trigonometry

 

[Glory Hunter]

binominal nhi yaar
binomial theorem. u dunno?

nope is it in xo-ordinate geometry or circular measure

 

[Glory Hunter]

Glory Hunter Bionimal is anothr chap of Maths P1...will be doin aftr trigonometrytrigonometry

oh ok

 

[RoOkaYya G]

nope is it in xo-ordinate geometry or circular measure

-______- wht?
binomial in tht?
u knw binomial is like tomato. its in all dishes
even in s1 *_*

 

[Wkhan860]

-______- wht?
binomial in tht?
u knw binomial is like tomato. its in all dishes
even in s1 *_*

It's pretty easy to be frank...haven't encountered any difficulties yet

 

[RoOkaYya G]

It's pretty easy to be frank...haven't encountered any difficulties yet

alhamd

 

[Thought blocker]

All the best/

 

[bludlynsolja]

phew!! thanks alot that was some gr8 help..
just concerning the angle, why tan theta and why is the direction as u have stated?
sorry for the trouble//

 

[RoOkaYya G]

phew!! thanks alot that was some gr8 help..
just concerning the angle, why tan theta and why is the direction as u have stated?
sorry for the trouble//

its always been tan theta ask ppl who discovered it xD
sorry
its a standard formula. its always tan theta

coz the resultant must be on opposite direction of other forces to maintain equilibrium n all.
directions is taken from i position always. like we do for bearing while taking position from north.
got it?

 

[bludlynsolja]

to be honest, i didnt knw! bt thanks for the help as now i knw!!!
i might bug u more tomorrow as i have my exam on friday!