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In each of the these question two equati...

In each of the these question two equation (I) and (II) are given. You have to solve both the equtions and give answer accordingly
I `2x^3=sqrt(256)`
II `2y^2-9y+10=0`

A

`xgty`

B

`xgey`

C

`xley`

D

x=y

Text Solution

AI Generated Solution

The correct Answer is:
To solve the given equations step by step, we will start with each equation separately. ### Step 1: Solve Equation I The first equation is: \[ 2x^3 = \sqrt{256} \] **Step 1.1:** Calculate \(\sqrt{256}\). \[ \sqrt{256} = 16 \] **Step 1.2:** Substitute this value back into the equation. \[ 2x^3 = 16 \] **Step 1.3:** Divide both sides by 2 to isolate \(x^3\). \[ x^3 = \frac{16}{2} = 8 \] **Step 1.4:** Take the cube root of both sides to solve for \(x\). \[ x = \sqrt[3]{8} = 2 \] ### Step 2: Solve Equation II The second equation is: \[ 2y^2 - 9y + 10 = 0 \] **Step 2.1:** Factor the quadratic equation. We need to find two numbers that multiply to \(2 \times 10 = 20\) and sum to \(-9\). The numbers are \(-4\) and \(-5\). **Step 2.2:** Rewrite the equation using these numbers. \[ 2y^2 - 4y - 5y + 10 = 0 \] **Step 2.3:** Group the terms. \[ (2y^2 - 4y) + (-5y + 10) = 0 \] **Step 2.4:** Factor by grouping. \[ 2y(y - 2) - 5(y - 2) = 0 \] \[ (y - 2)(2y - 5) = 0 \] **Step 2.5:** Set each factor to zero. 1. \(y - 2 = 0 \Rightarrow y = 2\) 2. \(2y - 5 = 0 \Rightarrow y = \frac{5}{2} = 2.5\) ### Step 3: Summary of Solutions From the solutions obtained: - \(x = 2\) - \(y = 2\) or \(y = 2.5\) ### Step 4: Compare Values Now we compare the values of \(x\) and \(y\): - When \(y = 2\), \(x = 2\) (equal) - When \(y = 2.5\), \(x = 2\) (less than) Thus, we conclude that: \[ x \leq y \] ### Final Answer The correct option is that \(x\) is less than or equal to \(y\). ---
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