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ফুড ইঞ্জিনিয়ারিং

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12111. MCQPractice set · Question 63

sin(75°) বা cos(15°) এর নির্ভুল মান কোনটি? (প্রশ্ন 63)

a.
(√6 - √2) / 4
b.
(√3 + 1) / 2
c.
(√6 + √2) / 4
d.
(√3 - 1) / (2√2)

Correct answer: c

sin(75°) = sin(45° + 30°) = sin 45° cos 30° + cos 45° sin 30° = (1/√2)(√3/2) + (1/√2)(1/2) = (√3 + 1) / (2√2) = (√6 + √2) / 4।

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12112. MCQPractice set · Question 64

sin(75°) বা cos(15°) এর নির্ভুল মান কোনটি? (প্রশ্ন 64)

a.
(√6 - √2) / 4
b.
(√3 + 1) / 2
c.
(√3 - 1) / (2√2)
d.
(√6 + √2) / 4

Correct answer: d

sin(75°) = sin(45° + 30°) = sin 45° cos 30° + cos 45° sin 30° = (1/√2)(√3/2) + (1/√2)(1/2) = (√3 + 1) / (2√2) = (√6 + √2) / 4।

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12113. MCQPractice set · Question 65

sin(75°) বা cos(15°) এর নির্ভুল মান কোনটি? (প্রশ্ন 65)

a.
(√6 + √2) / 4
b.
(√6 - √2) / 4
c.
(√3 + 1) / 2
d.
(√3 - 1) / (2√2)

Correct answer: a

sin(75°) = sin(45° + 30°) = sin 45° cos 30° + cos 45° sin 30° = (1/√2)(√3/2) + (1/√2)(1/2) = (√3 + 1) / (2√2) = (√6 + √2) / 4।

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12114. MCQPractice set · Question 66

sin(75°) বা cos(15°) এর নির্ভুল মান কোনটি? (প্রশ্ন 66)

a.
(√6 - √2) / 4
b.
(√6 + √2) / 4
c.
(√3 + 1) / 2
d.
(√3 - 1) / (2√2)

Correct answer: b

sin(75°) = sin(45° + 30°) = sin 45° cos 30° + cos 45° sin 30° = (1/√2)(√3/2) + (1/√2)(1/2) = (√3 + 1) / (2√2) = (√6 + √2) / 4।

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12115. MCQPractice set · Question 67

sin(75°) বা cos(15°) এর নির্ভুল মান কোনটি? (প্রশ্ন 67)

a.
(√6 - √2) / 4
b.
(√3 + 1) / 2
c.
(√6 + √2) / 4
d.
(√3 - 1) / (2√2)

Correct answer: c

sin(75°) = sin(45° + 30°) = sin 45° cos 30° + cos 45° sin 30° = (1/√2)(√3/2) + (1/√2)(1/2) = (√3 + 1) / (2√2) = (√6 + √2) / 4।

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12116. MCQPractice set · Question 68

sin(75°) বা cos(15°) এর নির্ভুল মান কোনটি? (প্রশ্ন 68)

a.
(√6 - √2) / 4
b.
(√3 + 1) / 2
c.
(√3 - 1) / (2√2)
d.
(√6 + √2) / 4

Correct answer: d

sin(75°) = sin(45° + 30°) = sin 45° cos 30° + cos 45° sin 30° = (1/√2)(√3/2) + (1/√2)(1/2) = (√3 + 1) / (2√2) = (√6 + √2) / 4।

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12117. MCQPractice set · Question 69

sin(75°) বা cos(15°) এর নির্ভুল মান কোনটি? (প্রশ্ন 69)

a.
(√6 + √2) / 4
b.
(√6 - √2) / 4
c.
(√3 + 1) / 2
d.
(√3 - 1) / (2√2)

Correct answer: a

sin(75°) = sin(45° + 30°) = sin 45° cos 30° + cos 45° sin 30° = (1/√2)(√3/2) + (1/√2)(1/2) = (√3 + 1) / (2√2) = (√6 + √2) / 4।

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12118. MCQPractice set · Question 70

sin(75°) বা cos(15°) এর নির্ভুল মান কোনটি? (প্রশ্ন 70)

a.
(√6 - √2) / 4
b.
(√6 + √2) / 4
c.
(√3 + 1) / 2
d.
(√3 - 1) / (2√2)

Correct answer: b

sin(75°) = sin(45° + 30°) = sin 45° cos 30° + cos 45° sin 30° = (1/√2)(√3/2) + (1/√2)(1/2) = (√3 + 1) / (2√2) = (√6 + √2) / 4।

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12119. MCQPractice set · Question 71

sin(75°) বা cos(15°) এর নির্ভুল মান কোনটি? (প্রশ্ন 71)

a.
(√6 - √2) / 4
b.
(√3 + 1) / 2
c.
(√6 + √2) / 4
d.
(√3 - 1) / (2√2)

Correct answer: c

sin(75°) = sin(45° + 30°) = sin 45° cos 30° + cos 45° sin 30° = (1/√2)(√3/2) + (1/√2)(1/2) = (√3 + 1) / (2√2) = (√6 + √2) / 4।

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12120. MCQPractice set · Question 72

sin(75°) বা cos(15°) এর নির্ভুল মান কোনটি? (প্রশ্ন 72)

a.
(√6 - √2) / 4
b.
(√3 + 1) / 2
c.
(√3 - 1) / (2√2)
d.
(√6 + √2) / 4

Correct answer: d

sin(75°) = sin(45° + 30°) = sin 45° cos 30° + cos 45° sin 30° = (1/√2)(√3/2) + (1/√2)(1/2) = (√3 + 1) / (2√2) = (√6 + √2) / 4।

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