`(63)^(1//3)~~....`

find the sum of 15 terms of The sum of the series (1)/(3)+(1)/(15)+(1)/(35)+(1)/(63)+..........oo terms,is

What is the value of ((6.3)^(3)+(1.1)^(3))/((6.3)^(2)-6.3xx1.1+(1.1)^(2))

Evaluate the following (i) i^(9) (ii) i^(342) (iii) i^(998) (iv) i^(-63) (v) (i^(3)+(1)/(i^(3)))

(1-(cos61^(@))/(cos1^(@)))(1-(cos62^(@))/(cos2^(@)))(1-(cos63^(@))/(cos3^(@)))...(1-(cos119^(@))/(cos59^(@)))

Find the slopes of the lines passing through the following points : (i) (1,5) and (3,2) (ii) (-4,3) and (-6,3) (iii) (1,3) and (1,4) (iv) (2,-1) and (3,2)

Find the slopes of the lines passing through the following points : (i) (1,5) and (3,2) (ii) (-4,3) and (-6,3) (iii) (1,3) and (1,4) (iv) (2,-1) and (3,2)

Show that the line joining (2,-5) and (-2, 5) is perpendicular to the line joining (6,3) and (1,1).

Show that the joining (2,-5) and (-2,5) is perpendicular to the line joining (6,3) and (1,1) .

Simplify: ((1)/(3)+(3)/(4)((2)/(5)-(1)/(3)))/(1(2)/(3)backslash of (3)/(4)-(1)/(4)backslash of(4)/(5))(1)/(63)(b)(23)/(40)(c)(23)/(55) (d) (23)/(63)