In order for maximum growth of orange trees in a grove, the farmer must plant the trees exactly 6’3” apart to ensure the best su
1 answer:
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Step-by-step explanation:
(i)
Using cos(a - b) = cos a cos b + sin a sin b
= cos a cos b +
cos a cos b =
(ii)
Using cos(a + b) = cos a cos b - sin a sin b
cos(a + b) =
(iii)
Using cot a =
×
= 3
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