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CBSE Class 11-science Answered

when theta is 90 degree, tan alpha is B over A or Modulus of B over A
Asked by ILISHA Aggarwal | 18 Oct, 2014, 10:03: PM
answered-by-expert Expert Answer
The value of angle is a scalar quantity, and hence, is a magnitude.
 
So, the value of tan α has to modulus of B over modulus of A, i.e.
 
begin mathsize 14px style tanα equals fraction numerator open vertical bar straight B with rightwards arrow on top close vertical bar over denominator open vertical bar straight A with rightwards arrow on top close vertical bar end fraction equals straight B over straight A end style
Answered by Romal Bhansali | 20 Oct, 2014, 01:31: PM
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