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Since i^2=-1, therefore, i=(+/-)sqrt(-1). Becareful, it's wrong!

There are two questions; find the square roots of 3+4i and find sqrt(3+4i). Do u think the solutions are same?

There are two six letters: two A's, two B's, one C and one D. How many arrangements if two A's and two B's cannot be next to each other? Good luck!

Hi. guys: Try this question. There are five letters, two A's, B, C & D. How many arrangements if two A's cannot be next to each other and B cannot be first. Good luck!

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(x+iy)^2=3-4i=(2-i)^2 Therefore: x+iy=(+/-) (2-i)

Qusetion: Hi, friends! Try this question. Find x and y is (x+iy)^2=3-4i where x and y are real number? The best solution is posted on "The solution of complex number". I wish it will save u a lots of time and get right answer without any mistakes. Enjoy!

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A biased coin, the probability of the head for a toss is p, where p not equal to 0.5 and 0<p<1, is tossed ten times. Q1) Find the probability for exact two heads Q2)Find the probability for exactly consecutive two heads only Do u want more, call 0413 197 399

Maths Ext2 I need more inequality question!:o