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Mathematics: Post your doubts here!
it gives different answer to when i calculate it the long way- can u please do it both ways n tell me which is the right answer? -
Mathematics: Post your doubts here!
please help- its the last one for the day -
Mathematics: Post your doubts here!
please check if i have done this correctly a college agrees a sponsorship deal in which grants will be received each year for sports equipment. this grant will be $4000 in 2012 and will increase by 5% each year. calculate i) the value of grant in 2022 ii) the total amount the college will... -
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Mathematics: Post your doubts here!
this is from- 9709/12/0ct/nov/ 2011- there isnt a link available our teacher only gave us hard copy- on paper if i had the link i wld have checked the answer -
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Mathematics: Post your doubts here!
no i don't can u just give me a guess? -
Mathematics: Post your doubts here!
please help here curve= (8x-x^2)^o.5 find an expression for dy/dx, and coordinates of the stationary points on the curve i have 0.5* (8x-x^2)^-0.5 *(8-2x) = (4-x)*(8x-x^2)^-0.5 is this correct? how do i get the stationary points? please explain! -
Mathematics: Post your doubts here!
Thank you soooooo much! really helpful -
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Mathematics: Post your doubts here!
hi can anyone help me with this question a curve is such that dy/dx= 5 - 8/x^2. the line 3y+x=17 is the normal to the curve at point P on the curve given that the x co-ordinate of P is positive , find i) the coordinate of P ii) the equation of the curve to get to P i know that the normal... -
Mathematics: Post your doubts here!
th thank you for showing me the shorter way- saves time in exams :)) -
Mathematics: Post your doubts here!
i have another binomial question, i can do the first bit but the second- i am not sure if i am right please check n tell me if m right or wrong I) find the first 3 terms in the expansion of (2-y)^5 in ascending powers of y i did the following 5C0 * (2)^5 * (-y)^0 + 5C1 * (2)^4 *... -
Mathematics: Post your doubts here!
yeah that formula is fine but to find the other side is the problem- i need to find x or y- hw do i do that? -
Mathematics: Post your doubts here!
hey i need to go, i will check ur reply tom, goodnight, n thank very much for ur help. -
Mathematics: Post your doubts here!
nope i dnt have the answer- pls explain how u got the answer -
Mathematics: Post your doubts here!
yes it is- the top corner on the left hand side is the right angle -
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Mathematics: Post your doubts here!
how do you know it will be exactly 5?? and why do u multiply by 4? -
Mathematics: Post your doubts here!
Please help here!! from here you are told theta is pi/5 and r is 10 i have to find x and y length so that i can get the area of the triangle i knw SOH CAH TOA has to be used so for x= 10sin(pi/5)= 5.87785...... so is x= 5.9 then for y= 10cos(pi/5)= 8.09016.... so is y= 8.1? n the...