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a) We can get the result by calculating the common ratio between elements 1 and 2, and 2 and 3. R_n = 1/√x-1 /Ratio between 1st and 2nd R_n = √x + 1 /Ratio between 2nd...

35x + 6x + 3b ≡ ax + 13 41x + 3b ≡ ax + 13 when x=0 3b + 40 = 13 3b= -27 b=-9 so 41x - 27 + 40 ≡ ax + 13 when x = 1 41-27 + 40 = a + 13a = 41

We commonly solve this via the method of substitution. We label each equation i and ii. We then solve the first equation i for a single variable. We then substitute this value into the secod equation, and...

If two lines are parallel they have the same gradient so we must find the gradient of line B and use it to find line ALine B ==> 2y - 3x + 4 = 0This can be rearranged in to the form "y = mx + c&qu...

What helps to factorise quadratic equations is to remember the rule that the number without a coefficient must be multiplied into. Since this is negative above, it means one of the factor terms must be ne...