Question

50points!!!! Please answer full explaination...the answer is 60 degree​

Answer 1

Step-by-step explanation:

4sina= √3(1+2cosa)

square on both sides

16sin^a = 3(1+4cosa+4cos^a)

12cos^2a+12cosa+3= 16(1-cos^2a)

28cos^2a+12cosa-13=0

28cos^2a+26cosa-14cosa-13=0

2cosa(14cosa+13)-1(14cosa+13)=0

(14cosa+13)(2cosa-1)=0

cosa= -13/14

and cosa=1/2

so above case sin and cos also positive so angle should be belongs to first quadrant

so cosa=1/2=cos60

a=60

Answer 2

Answer:

$x {x5 { { < {xx \sin( \tan( \sin(\pi6 {xy \frac{ | \sqrt[56]{?} | }{?} }^{2} ) ) ) }^{2} \times \frac{?}{?} }^{2} \times \frac{?}{?} }^{2} }^{?}$

well, if each apple has an equal mass then mathematically it should 250 grams in each apple. However, practically, we don’t see apples having same size or mass. Even, while we buy 1 kg Apple it happens most of the time that the shopkeeper could not weigh them accurately. So to my conclusion, I could not measure the mass on an apple while considering 4 apples and applying unitary method.

THANKS FOR YOUR QUESTIONS

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