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hey guys, i have these questions from achiever test #2 in QR
1. simplify Sin4θ – cos 4θ / sin2θ [ the numerator (4's) are superscripts and the denominator 2 is just plain normal 2]
their solution was this: (Sin2θ – cos 2θ😉( sin 2 θ + cos2 θ😉 / sin2 θ
[ the numerators are superscripts again]
which they reduced to -cos2θ/sin2θ
[ these 2's are normal sized]
i dont understand their solution!!
#14. A 120 m trapping net strected out into a 3-sided rectangular corral is used to front a flowing river. what value of widths (w) being parallel to the riverbanks, will provide the corral with the largest capturing area.
i wont type out the solution they used. so if anyone can help me solve it given the problem, thatd be awesome!
1. simplify Sin4θ – cos 4θ / sin2θ [ the numerator (4's) are superscripts and the denominator 2 is just plain normal 2]
their solution was this: (Sin2θ – cos 2θ😉( sin 2 θ + cos2 θ😉 / sin2 θ
[ the numerators are superscripts again]
which they reduced to -cos2θ/sin2θ
[ these 2's are normal sized]
i dont understand their solution!!
#14. A 120 m trapping net strected out into a 3-sided rectangular corral is used to front a flowing river. what value of widths (w) being parallel to the riverbanks, will provide the corral with the largest capturing area.
i wont type out the solution they used. so if anyone can help me solve it given the problem, thatd be awesome!
