Surds And Indices Q34

34.

1	+	1	+	1	= ?
1 + x^(b - a) + x^(c - a)		1 + x^(a - b) + x^(c - b)		1 + x^(b - c) + x^(a - c)

A.	0	B.	1
C.	x^a^- b - c	D.	None of these

Answer: Option B

Explanation:

Given Exp. =

	1 +	x^b	+	x^c
		x^a		x^a

	1 +	x^a	+	x^c
		x^b		x^b

	1 +	x^b	+	x^a
		x^c		x^c

=	x^a	+	x^b	+	x^c
	(x^a + x^b + x^c)		(x^a + x^b + x^c)		(x^a + x^b + x^c)

=	(x^a + x^b + x^c)
	(x^a + x^b + x^c)

= 1.

Title : Surds And Indices Q34
Description : 34. 1 + 1 + 1 = ? 1 + x ( b - a ) + x ( c - a ) 1 + x ( a - b ) + x ( c - b ) 1 + x ( b - c ) + ...
Rating : 5

Surds And Indices Q34

Popular Post

Categories