मराठी

Find the Value of K in Each of the Following: ( √ 9 ) − 7 × ( √ 3 ) − 5 = 3k - Mathematics

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प्रश्न

Find the value of k in each of the following:

`(sqrt(9))^-7 xx (sqrt(3))^-5` = 3k 

बेरीज

उत्तर

`(sqrt(9))^-7 xx (sqrt(3))^-5` = 3k 

⇒ `{(3^2)^(1/2)}^-7 {(3)^(1/2)}^-5` = 3k

⇒ `3^-7 xx 3^((-5)/2)` = 3k

⇒ `3^(-7 -5/2)` = 3k

⇒ `3^((-14 - 5)/(2)` = 3k

⇒ `3^((-19)/(2)` = 3k

⇒ k = `(-19)/(2)`.

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Solving Exponential Equations
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 9: Indices - Exercise 9.1

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फ्रँक Mathematics [English] Class 9 ICSE
पाठ 9 Indices
Exercise 9.1 | Q 10.3
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