Question

I had 25 apples and I ate 6 of them . how many are left?​

Answer 1

Answer:

19

Step-by-step explanation:

25-6 = 19

Answer 2

Answer:

Of course 19...

Solution : L.H.S. = (sin4θ – cos4θ +1) cosec2θ = [(sin2θ – cos2θ) (sin2θ + cos2θ) + 1] cosec2θ = (sin2θ – cos2θ + 1) cosec2θ [Because sin 2θ + cos2θ =1] = 2sin2θ cosec2θ [Because 1– cos 2θ = sin2θ ] = 2 = RHSRead more on Sarthaks.com - https://www.sarthaks.com/123450/prove-that-sin-4-cos-4-1-cosec-2-2