Find the maximum value of 5cosA + 12sinA + 12

1.	Find the maximum value of 5cosA + 12sinA + 12
Answer» maximum value of cos can be 1 .maximum value of sin can be 1 51+121+12=5+12+12=5+24=29 The maximum value acos∅+bsin∅ = √a²+b² ao, for 5cosA +12sinA , it will be √12²+5² = √169 = 13 now maximum value of 5cosA +12sinA +12 = 13+12 = 25 the above answer 29 provided by the fellow is wrong.. he doesn't know.. that sinA and CosA can't be 1 , at same time and same value of A ca n you tell the ans . 25 is the answer . i have solved above

Answer»

maximum value of cos can be 1

.maximum value of sin can be 1

5*1+12*1+12=5+12+12=5+24=29

The maximum value acos∅+bsin∅ = √a²+b² ao, for 5cosA +12sinA , it will be √12²+5² = √169 = 13

now maximum value of 5cosA +12sinA +12 = 13+12 = 25

the above answer 29 provided by the fellow is wrong.. he doesn't know.. that sinA and CosA can't be 1 , at same time and same value of A

ca n you tell the ans .

25 is the answer . i have solved above

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