1397 x 1397 = ? Here what replaces '?'

Q:

If sin x + cos x = √2 sin x, then the value of tan x is

A) √2 - 1	B) √2 + 1
C) 1	D) √2

Answer & Explanation Answer: B) √2 + 1

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Q:

$If a^{3} + a - 1 = 0 then find the value of a^{6} + a^{4} + a - 2$

A) -1	B) 0
C) 1	D) 2

Answer & Explanation Answer: A) -1

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0 385

Q:

If $\sec θ + \tan θ = 2, then \sec θ - \tan θ = ?$

A) 0.5	B) 1.5
C) 1	D) 0.75

Answer & Explanation Answer: A) 0.5

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Q:

If $\sin θ = 40 / 41$ , then $c o t θ$ is

A) 40/9	B) 9/40
C) 9/41	D) 41/9

Answer & Explanation Answer: B) 9/40

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Q:

The expenses of a person increase by Rs. 50000 for every month in February and March. If his expenses in January was Rs. 50000, calculate his average expenditure (in Rs.) from January to March.

A) 100000	B) 150000
C) 75000	D) 50000

Answer & Explanation Answer: A) 100000

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Q:

If $19 x^{2} = 100^{2} - 90^{2}$ , then find the value of x.

A) 10	B) 9
C) 11	D) 12

Answer & Explanation Answer: A) 10

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1 3941

Q:

What is the value of (cosec60 - 1/2) ?

A) (4-√3)/2√3	B) (2√3-1)/√3
C) (3√3-1)/3	D) 1/√3

Answer & Explanation Answer: A) (4-√3)/2√3

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Q:

If √21 = 4.58, then the simplified value of $(8 \sqrt{\frac{3}{7}} - 3 \sqrt{\frac{7}{3}})$

A) 0.474	B) 0.752
C) 0.655	D) 1

A) 1951609	B) 1821504
C) 2031489	D) 1847879

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1397 x 1397 = ?

Here what replaces '?'