# CBSE Class 11 Mathematics Three Dimensional Geometry Assignment Set A

**Q1. (i) If (x-y, 3) = (5, x+y) then find the value of x and y.**

**Ans.** 4,-1,

**(ii) If (x+3, 5) = (6, 2x+y) then find the value of x and y.**

** Ans.** 3,-1,

**(iii) If (x-1, y+3) = (2, -5) then find the value of x and y.**

**Ans.** 3,-8,

**Q2. If n (A) =p, n (B) =q, n(C) = r and n (D) = s then find**

** (i) n (AxBxCxD)**

** (ii) Number of possible subset of (AxBxCxD)**

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