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ghaziBest ResponseYou've already chosen the best response.2
well, sin (theta)=  sin theta, therefore sin (90) = 0.8939 or approximately 1
 10 months ago

Studentc14Best ResponseYou've already chosen the best response.0
but how do you know it is 1 without a calculator
 10 months ago

ghaziBest ResponseYou've already chosen the best response.2
well you have to calculate the value by this triangle, i assume that triangle of sides 1 unit and when you find any sine angle in that triangle and you use the limits in that you will get it around 0.89 or approximately 1, but when sine is ve your value will be 1
 10 months ago

Studentc14Best ResponseYou've already chosen the best response.0
i dont understand this. how is there a triangle where the hypotenuse is 1?
 10 months ago

ghaziBest ResponseYou've already chosen the best response.2
well if you just talk about a triangle where hypotenuse could be one , then you can use a triangle where sides are \[\frac{ 1 }{ \sqrt2 }\] but in this case consider an example dw:1369862687154:dw when theta 2= theta 1 and z=y , we have assumed y = x and when z=y then ratio of y/z will be =y/y and hence sin theta =1
 10 months ago

reemiiBest ResponseYou've already chosen the best response.0
dw:1369863251318:dw therefore, dw:1369863295912:dw
 10 months ago
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