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Given:
The given number is √180.
Calculation:
According to the question, we have,
√180 = √(3 × 3 × 2 × 5 × 2)
⇒ √180 = 3 × 2√5
⇒ 6√5
∴ The value of √180 is 6√5.
x32.56=100x
x4/3=100×2.56
x=2563/4
x = 162 × 3/4 = 42 × 3/2
x = 43 = 64
Additional InformationFormula used:
am × an = a(m + n)
am ÷ an = a(m - n)
(am)n = amn
16√n = √1600 + √576, find the value of n?
16√n = √1600 + √576
According to the question,
⇒ 16√n = √1600 + √576
⇒ 16√n = 40 + 24
⇒ √n = 64/16
⇒ √n = 4
n = (4)2 = 16
∴ Value of n is 16
Formula used:
(ax)y = axy
[5(813+2713)3]14
⇒ [5((23)13+(33)13)3]14
⇒ [5((2)+(3))3]14
⇒ [5(2+3)3]14
⇒ [5×(5)3]14
⇒ [(5)4]14 = 5
∴ The value of [5(813+2713)3]14 is 5.
Concept used:
ab × ac = ab + c
If ab = ac then b = c
(ab)c = ab × c
1252 × (625)-0.25 = 5x
⇒ 53 × 2 × 54 × -0.25 = 5x
⇒ 56 × 5-1 = 5x
⇒ 56 - 1 = 5x
⇒ 55 = 5x
⇒ x = 5
Find the value of x:
23 × 34 × 1080 ÷ 15 = 6x
Given,
⇒ 23 × 34 × 72 = 6x
⇒ 23 × 34 × (2 × 62) = 6x
⇒ 24 × 34 × 62 = 6x
⇒ (2 × 3)4 × 62 = 6x [∵ xm × ym = (xy)m]
⇒ 64 × 62 = 6x
⇒ 6(4 + 2) = 6x
⇒ x = 6
(56/x) = √(196/324)
⇒ (56/x) = 14/18
⇒ x = (56 × 18)/14
⇒ x = 72
∴ The value of x is 72.
∛3375
∛(3 × 3 × 3 × 5 × 5 × 5)
3 × 5 = 15
The square of 2112
(a + b)2 = a2 + b2 + 2ab
(2100 + 12)2
⇒ (2100)2 + (12)2 + 2 × 2100 × 12
⇒ 4410000 + 144 + 50400
⇒ 4460544
∴ The square of 2112 is 4460544.
Find the value of x
292 - 252 = 63 + x
Calculations:
⇒ 292 - 252 = 63 + x
⇒ 841 - 625 = 63 + x
⇒ 216 = 63 + x
⇒ 216 - 216 = x
⇒ x = 0
∴ The value of x is 0.
Correct (-)
Wrong (-)
Skipped (-)