for the 3rd and 4th question use the formula as above
If you get a^4 + bx^2 + c and cant factorise it
Let x=a^2 as above and then use the quadratic formula to find x
x=a^2
Someone help me out with this problem :
From the 3 unit cambrdige book i done about 95 percent of the integration questions. 2 months later i look back on the work and dont know anything on integration and i have to do everything again
Same applies to complex numbers. I done alot of...
i got da exact same problem. ESPECIALLY IN MATHS
i spend about 2 hours. Look back on my work. Ive only one about 3 questions
Dont rush.. Just go at your own pace. Someone may take 1 hour to do 10 maths questions. You make take 2 hours but u may understand it more than them...
Goodluck with...