Question
What is the simplified value of the given
expression? 3(sin² 50° + sin² 40°) + 6sin 30° - (3sec 60° + cot 45°)Solution
3(sin ² 50° + sin ² 40°) + 6sin 30° - (3sec 60° + cot 45°)
Using, sin(90° - A) = cos A
= 3{sin ² 50° + sin ² (90 - 50)°} + 6 x 1/2 - {3 x 2 + 1}
= 3(sin ² 50° + cos ² 50°) + 3 - 7
Using, sin ² A + cos ² A = 1
= 3 x 1 + 3 - 7 = 3 + 3 - 7 = -1
In a perfectly competitive market, a firm’s long run supply curve is
Which of the following conditions is not necessary for ordinary least squares to be the best unbiased linear estimator (BLUE)?Â
 The index of import prices stands at 150 and that of exports is 180. What is the terms of trade
CBDC concern for monetary policy transmission:
Mahalanobis model is –
What will happen when supply elasticity is less than demand elasticity?
Use the below table and choose the correct option
The range of coefficient of linear regression?Â
If rxy = 0.75, then correlation coefficient between u = 1.5X and v = 2Y is:
If a tax on a good is doubled, the deadweight loss from the tax
