2¹⁹⁸- 2¹⁹⁷- 2¹⁹⁶+ 2¹⁹⁵= k×2¹⁹⁵
Find k.
Plz Solve It.
Don't post wrong and irreverent answers.
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Correct Question:
2¹⁹⁸ - 2¹⁹⁷ - 2¹⁹⁶ - 2¹⁹⁵ = k × 2¹⁹⁵
Find k.
Answer:
To solve this, first check this sequence
⇢ 2³ - 2² = 8 - 4 = 4 = 2²
⇢ 2⁴ - 2³ = 16 - 8 = 8 = 2³
⇢ 2⁵ - 2⁴ = 32 - 16 = 16 = 2⁴
What we have observed in the above sequence??
— Whenever we are Subtracting a preceding number power of 2 to it's following number, we are getting results as power of preceding number.
Now we will solve the above question with the following idea only
• According to the Question :
⇒ 2¹⁹⁸ - 2¹⁹⁷ - 2¹⁹⁶ - 2¹⁹⁵ = k × 2¹⁹⁵
- Solving (2¹⁹⁸ - 2¹⁹⁷) will give 2¹⁹⁷
⇒ 2¹⁹⁷ - 2¹⁹⁶ - 2¹⁹⁵ = k × 2¹⁹⁵
- Solving (2¹⁹⁷ - 2¹⁹⁶) will give 2¹⁹⁶
⇒ 2¹⁹⁶ - 2¹⁹⁵ = k × 2¹⁹⁵
- Solving (2¹⁹⁶ - 2¹⁹⁵) will give 2¹⁹⁵
⇒ 2¹⁹⁵ = k × 2¹⁹⁵
⇒ 2¹⁹⁵ / 2¹⁹⁵ = k
⇒ k = 1
∴ Hence, the required value of k is 1.
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