Question

what is the importance of dua when the fruits of the season is presented?​

Answer 1

Explanation:

5cosA +12sinA + 12 = 13(5/13 cosA +12/13sinA) + 12

Now, for any values of B we can get sinB =5/13 and we can replace cosB = 12/13.

We see that our assumption is right because we satisfy the condition sin^2B + cos^2B=1 so we get 13(sinBcosA +cosBsinA) + 12 =13(sin(A+B))+12. Therefore we know that minimum value of sinx=-1 and greatest is 1 so the least value of the expression becomes when sin(A+B) =-1 then the value of the whole term becomes 13.(-1) + 12 = -13 +12 = -1