alleryStart learning →tan(45°) equals:
- ∞
- 0
- 1
- √3
Show answer and solution
Correct answer: C. 1
We have tan(45°) = sin(45°)/cos(45°).
That is tan(45°) = (1/√2)/(1/√2).
So tan(45°) = 1.
Indian Navy SSR (Sailor) Integral Calculus — practice questions
Explore 46 free Integral Calculus questions in Indian Navy SSR (Sailor) Mathematics. Open each question or exercise to read its content, reference answers and available explanation.
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tan(45°) equals:Read the answer and worked solution →The arithmetic mean of n values x1, x2, ..., xn is:Read the answer and worked solution →∫ cos x dx =Read the answer and worked solution →∫ 1/(1 + x²) dx =Read the answer and worked solution →∫ from 0 to ∞ e^(-x) dx =Read the answer and worked solution →The angle 90° in radians is:Read the answer and worked solution →Complete the arc length relationRead the answer and worked solution →Match each identity to its nameRead the answer and worked solution →The Pythagorean identitiesRead the answer and worked solution →Odd function or even function?Read the answer and worked solution →Complete the degree and radian conversionRead the answer and worked solution →True or false: identities and parityRead the answer and worked solution →Match each sum or difference formula to its resultRead the answer and worked solution →Signs in the expansionRead the answer and worked solution →Which formula does this belong to?Read the answer and worked solution →True or false: periodicityRead the answer and worked solution →Complete the complementary angle rulesRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Order the steps: convert degrees to radiansRead the answer and worked solution →Flip and pair: identity with its valueRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Tap every correct identityRead the answer and worked solution →Radians and degreesRead the answer and worked solution →True or false: reading the identitiesRead the answer and worked solution →Complete the relationship between the two calculiRead the answer and worked solution →True or false: the constant of integrationRead the answer and worked solution →Differentiation or integration?Read the answer and worked solution →Tap every property of indefinite integrals the chapter givesRead the answer and worked solution →
Worked practice questions
The arithmetic mean of n values x1, x2, ..., xn is:
- sum of all values / n
- Product / n
- n / sum
- Largest value
Show answer and solution
Correct answer: A. sum of all values / n
Mean = (sum of values) / n.
Most common measure of central tendency. Sensitive to outliers.
∫ cos x dx =
- -cos x
- cos x
- sin x + C
- -sin x
Show answer and solution
Correct answer: C. sin x + C
d/dx(sin x) = cos x, so ∫ cos x dx = sin x + C.
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