`(7+i5)(7-i5)`

The from a+ib:(7-i2)-(4+i)+(-3+i5)

In the following, perform the indicated operations and write the result in the form x+iy: (i) (7-2i)-(3+2i)+(7+8i) (ii) 3-4i+2i-(8+7i) (iii) (7-2i)-(4+i)+(-3+5i)

Find x and y if: (i)(x+iy)+(7-5i)=9+4i

See if you can find the value of x if the equation is changed to (i) (5)^(x+1)xx(5)^(5)=(5)^(7) (ii) (5)^(2x)xx(5)^(5)=(5)^(7)

Verify the following: (i) (-12)/(5)+(2)/(7)=(2)/(7)+(-12)/(5) (ii) (-5)/(8)+(-9)/(13)= (-9)/(13)+(-5)/(8) (iii) 3+(-7)/(12)=(-7)/(12)+3 (iv) (2)/(-7)+(12)/(-35)=(12)/(-35)+(2)/(-7)

Express of the complex number in the form a+ib3(7+i7)+i(7+i7)

Express each of the following in the form a+ib:3(7+7i)+i(7+7i)

Evaluate ( i ) 5!( ii) 7! (iii) 7!5!

In the following, perform the indicated operations and write the result in the form x+iy: (i) (5+4i)+(5-4i) (ii) -2i+((3)/(2)-4i) (iii) ((1)/(5)+(2)/(5)i)-(4+(5)/(2)i) (iv) 3(7+7i)+i(7+7i) .

(i) (5^(2))^(7) = (ii) (7^(3)) (9^(3)) =