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secondary 4 | A Maths
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help!!
Date Posted: 6 years ago
Views: 255
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Date Posted:
6 years ago
why is tan alpha= 12/5?
isnt tan alpha=sin alpha/cos alpha, which is 5/12
isnt tan alpha=sin alpha/cos alpha, which is 5/12
why +1 to find max value?
In the R-formula, the tan alpha is not calculated using sin/cos, it must be calculated using the coefficient of the second term over the coefficient of the first term; in its question, the first term is 5sinX, the second term is 12cosX, so tan alpha is 12/5.
+1 is in the question, I didn't add it myself, I forgot to write!
oh okayy!! TYSM!!
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