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) Statistics — practice questions
Explore 52 free Statistics 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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Showing questions 1–30 of 52.
tan(45°) equals:Read the answer and worked solution →The mode of the data 3, 4, 4, 5, 6, 6, 6, 7, 8 is:Read the answer and worked solution →The angle 90° in radians is:Read the answer and worked solution →The function f(x) = tan x has vertical asymptotes at:Read the answer and worked solution →CLASS10 · Mathematics · Mean, Median, ModeRead the answer and worked solution →CLASS10 · Mathematics · Statistics — True or FalseRead the answer and worked solution →Sort each inverse function into its domainRead the answer and worked solution →Tap every function whose domain is [−1, 1]Read the answer and worked solution →Match each inverse function to its domainRead the answer and worked solution →Match each inverse function to its principal value branchRead the answer and worked solution →Flip and pair: function with its principal rangeRead the answer and worked solution →Which principal ranges sit around zero, and which run 0 to π?Read the answer and worked solution →Tap every function whose principal range has a point removedRead the answer and worked solution →Name the principal value branchRead the answer and worked solution →Domain checkRead the answer and worked solution →Put the reasoning in order: why an inverse needs a restricted domainRead the answer and worked solution →True or false: existence of inversesRead the answer and worked solution →True or false: reading the tableRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Complete the summary tableRead the answer and worked solution →Complete the rule about restricting a domainRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Principal values worked in the chapterRead the answer and worked solution →Order the steps for finding a principal valueRead the answer and worked solution →True or false: principal valuesRead the answer and worked solution →Match each identity to the condition it needsRead the answer and worked solution →Assertion and reason: identitiesRead the answer and worked solution →Match each mathematician to the year your syllabus givesRead the answer and worked solution →
Worked practice questions
The mode of the data 3, 4, 4, 5, 6, 6, 6, 7, 8 is:
- 6
- 5
- 4
- 7
Show answer and solution
Correct answer: A. 6
6 appears three times, more than any other value.
**So the mode is 6.**
The angle 90° in radians is:
- $\pi$ (full half-circle)
- $2\pi$ (full circle)
- $\pi/2$ (quarter circle)
- $\pi/4$ (one eighth)
Show answer and solution
Correct answer: C. $\pi/2$ (quarter circle)
180° = π radians.
So 90° = π/2 radians.
Quarter of a full circle (2π).
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