A+B,A-B,CD,-theta Formulaes

If square matrices A and B are such that "AA"^(theta),"BB"^(theta)=B^(theta)B,"AB"^(theta)=B^(theta)A , then "AB"("AB")^(theta) is equal to

If pressure can be expressed as P=(b)/(a)sqrt(1+(kthetat^(3))/(ma)) where k is the Boltzmann's constant, theta is the temperature, t is the time and a and b are constants, then dimensional formula of b is equal to the dimensional formula of

The expression cos^(2)(theta+b)+cos^(2)(theta+a+b)+cos^(2)a-2cos a cos(theta+b).cos(theta+a+b) is independent of A) a B) b C) theta D) None of these

In y=(a+b)/(a-b) , make b as the subject of the formula.

The possible number of stereoismers for the formula [Ma_(2)b_(2)cd]^(pmn) .

A formula is given as P=(b)/(a)sqrt(1+(k.theta.t^(3))/(m.a)) where P = pressure, k = Boltzmann's constant, theta= temperature, t= time, 'a' and 'b' are constants. Dimensional formula of 'b' is same as

In the adjoining figure , angle B=90^(@),angle BAC=theta^(@),BC=CD=4 cm and AD=10 cm , Find (i) sin theta and (ii) cos theta .