Write the value of `s in 10^0+s in 20^0+s in 30^0++s in 360^0dot`

Write the value of sin 10^0+sin 20^0+sin 30^0+....+sin 360^@

Prove that: sin36^0s in 72^0s in 108^0s in 144^0=5/(16)dot

In Figure, P Q||R S ,\ /_A E F=95^0,\ /_B H S=110^0\ a n d\ /_A B C=x^0dot Then the value of x is (a) 15^0 (b) 25^0 (c) 70^0 (d) 35^0

Transverse waves travel with a speed of 20.0 m//s in a string under a tension of 6.00 N. what tension is requared for a wave speed of 30.0 m//s in the same string?

Prove that (cos100sin10^0)/(cos10^0-s in 10^0)=tan55^0

Write the number of solutions of the equation t a nx+s e cx=2cosx in the interval [0,2pi]dot

If both the distinct roots of the equation |sinx|^2+|sinx|+b=0in[0,pi] are real, then the values of b are [-2,0] (b) (-2,0) [-2,0] (d) non eoft h e s e

If both the distinct roots of the equation |sinx|^2+|sinx|+b=0in[0,pi] are real, then the values of b are [-2,0] (b) (-2,0) [-2,0] (d) non eoft h e s e

The magnetic field through a single loop of wire, 12 cm in radius and of 8.5Omega resistance, changes with time as shown in figure. Calculate the emf in the loop as a function of time. Consider the time intervals (a) t = 0 to t =2.0 s (b) t =2.0 s to t =4.0 s (c) t =4.0 s to t =6.0 s . The magnetic field is perpendicular to the plane of the loop.

The rate constants of a reaction at 500 K and 700 K are 0.02 s^(-1) and 0.07 s^(-1) respectively. Calculate the values of E_a and A.