Question
If x²- 5x + 1 = 0, what is the value of x² +
1/x2?Solution
x²- 5x + 1 = 0 ------- (i) Dividing eqn (i) by x => x²/x - 5x/x + 1/x = 0 => x + 1/x = 5 Now, x² + 1/x² = 5² - 2 = 23
If ‘A % B’ means ‘A is the daughter of B’, ‘A & B’ means ‘A is the wife of B’, and ‘A # B’ means ‘A is the son of B’, then how i...
P + Q means ‘P is the brother of Q’, P - Q means ‘P is the daughter of Q’, P ÷ Q means ‘P is the husband of Q’, P × Q means ‘P is the so...
If (A @ B) means A is son of B, (A # B) means A is father of B, (A & B) means A is mother of B, (A $ B) means A is brother of B. If G @ H&I # J $ K@ L, ...
If C + D means C is the mother of D, C – D means C is the father of D, C x D means C is the brother of D, and C ÷ D means C is the sister of D. If ...
- Answer the following question based on the direction given below. If 'A # B' means 'A is the father of B' 'A $ B' means 'A is the son of B' 'A & B' means '...
Which of the following statement is correct?
I. P is father of B
II. L is father-in-law of P
III. T is son of U
'A @ B' means 'A is the father of B'. 'A & B' means 'A is the son of B'. 'A β B' means 'A is the daughter of B'. 'A # B' means 'A is married to B'. 'A ...
If (A @ B) means A is son of B, (A # B) means A is father of B, (A & B) means A is mother of B, (A $ B) means A is brother of B. If R @ S&T # U $ V@ W, ...
Answer the following question based on the direction given below.
If 'A # B' means 'A is the son of B' 'A $ B' means 'A is the sister of B' 'A & ...
If R is the brother of X’s father’s mother in law, then which of the following expression is true?
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