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Electronics and Communication Engineering - Microprocessors - Discussion

Discussion Forum : Microprocessors - Section 11 (Q.No. 3)
Microprocessors
3.
It is desired to evaluate the expression
F = B cos Y + C cos2 Y + A cos3 Y
 The Pascal equivalent to ensure minimum computer time should be written as
F = B * COS (Y) + C * SQR (COS (Y) + A * COS (Y) * COS (Y) * COS (Y)
F = B * COS (Y) + C * SQR [COS (Y)] + A * COS (Y) * SQR [COS (Y)]
F = B * COS (Y) + C * COS(Y) * COS (Y) + A * COS (Y) * COS (Y) * COS (Y)
X = COS(Y)
Z = SQR (X)
F = B * X + C * Z + A * X * Z
Answer: Option
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