Question

an equation y = 2 x square cos squared to beta gamma upon Alpha the units of X Alpha Beta metre second inverse and metre per second inverse respectively the units of Y and gamma are​

Answer 1

Answer:

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Answer 2

Answer:

Explanation:

Since argument of cos has to be dimensionless, thus ∣2πβy  

′

/α∣=M 0  L  0  T  0

 Thus, ∣y  ′  ∣=  ∣β∣ ∣α∣

​    (π is dimensionless) Thus, ∣y  

′  ∣=  (ms  −1  )  −1

 s  −1

 

​  =ms  −2

 Now, since cos is dimensionless, thus ∣y∣=∣x  2  ∣=m2.