TI-BASIC:SK:Exercises Math - Revision history

Maintenance script: Automated superscript correction

2016-02-24T22:25:30Z

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← Older revision		Revision as of 22:25, 24 February 2016
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	# -30 / 6		# -30 / 6
	# int(-5.5)		# int(-5.5)
	# 5^^1^^		# 5<sup>1</sup>
	# 30 / 5		# 30 / 5

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	'''3'''. ''True'' or ''False'': The complex number ''i'' squared is equal to one.		'''3'''. ''True'' or ''False'': The complex number ''i'' squared is equal to one.

	'''Answer''': <span style="color:e7e9dc">False. ''i''^^2^^ = -1</span>		'''Answer''': <span style="color:e7e9dc">False. ''i''<sup>2</sup> = -1</span>

	'''4'''. Evaluate the following expression. Remember the Order of Operations.		'''4'''. Evaluate the following expression. Remember the Order of Operations.

KermMartian at 19:24, 24 February 2016

2016-02-24T19:24:23Z

← Older revision		Revision as of 19:24, 24 February 2016
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	'''4'''. Evaluate the following expression. Remember the Order of Operations.		'''4'''. Evaluate the following expression. Remember the Order of Operations.

	~~[[TI-BASIC:Math\|Math]]~~		<math>
	24 / 4 + 2 * (9 - 9 / 3) / 3		24 / 4 + 2 * (9 - 9 / 3) / 3
	~~[[TI-BASIC:~~/math~~\|/math]]~~		</math>

	'''Answer''': <span style="color:e7e9dc">The answer is 10. Remember PEMDAS</span>		'''Answer''': <span style="color:e7e9dc">The answer is 10. Remember PEMDAS</span>

Maintenance script: Initial automated import

2016-02-24T18:35:11Z

Initial automated import

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Let's review the commands you have learned concerning mathematical operations. Highlight the area next to the word '''Answer''' to reveal the answer. If there are certain topics you don't feel confident in yet, don't worry. Just go back to the appropriate page and review.

'''1'''. ''True'' or ''False'': Subtraction is the same as adding a negative number.

'''Answer''': True. 5 - 2 = 5 + -2

'''2'''. Which of the following expressions are equivalent?

# abs(-5)
# -30 / 6
# int(-5.5)
# 5^^1^^
# 30 / 5

'''Answer''': Choices 1 and 4, which both equal 5.

'''3'''. ''True'' or ''False'': The complex number ''i'' squared is equal to one.

'''Answer''': False. ''i''^^2^^ = -1

'''4'''. Evaluate the following expression. Remember the Order of Operations.

[[TI-BASIC:Math|Math]]
24 / 4 + 2 * (9 - 9 / 3) / 3
[[TI-BASIC:/math|/math]]

'''Answer''': The answer is 10. Remember PEMDAS

'''5'''. Which of the following commands will calculate the number of possible 3 digits number lock codes? The code can use the numbers 0 - 30 and order ''does'' matter.

# 3 nPr 30
# 30 nCr 3
# 3 nCr 31
# 31 nPr 3

'''Answer''': Choice 4. Order matters, making the code a ''permutation''. The length of the code, or ''r'', is 3 digits, and the number of possible digits. or ''n'', is 31, because we can use all numbers from 1 to 30 as well as 0.

'''6'''. ''True'' or ''False'': The default base of log(n) is 10.

'''Answer''': True. To get a different base, use the logBASE function or the formula: log(x)/log(b) = log,,b,,(x)

'''7'''. Which of the following trigonometric identities is correct?

# cos(x) - sin(x) = tan(x)
# tan(x) + cos(x) = sin(x)
# sin(x) / cos(x) = tan(x)
# sin(x) * tan(x) = cos(x)

'''Answer''': Choice 3.

'''8'''. The max() command can be used as a space-saving substitute for which kind of logical operator?

'''Answer''': The operator OR. The min() command can be used as a substitute for AND statements.[[Category:TI-BASIC]]
[[Category:TIBD]]