14o
21o
32o
39o
Correct answer is B
Sin (5x – 28)o = cos (3x - 50)o
Since by the trigonometry relation
Sin(5x – 28)o = cos[90 – (5x – 28)]o
Hence cos(3x – 50)o = cos[90 – (5x – 28)]o
3x – 50 = 90 - (5x-28)
3x – 50 = 90 – 5x + 28
3x + 5x = 90 + 28 + 50
8x = 168
x=1688=21∘
Evaluate 12.02×20.0626.04×60.06, correct to three significant figures....
What percentage of observation lie outside interquartile range of any distribution? ...
Find the values of x which satisfy the equation 16x - 5 x 4x + 4 = 0...
\(\begin{array}{c|c} \text{Average hourly earnings(N)} & 5 - 9 & 10 - 14 & 15 - 19 &...
If α and β are the roots of the equation 3x2 + 5x - 2 = 0, find the value of 1/&alph...
Which of the following is not necessarily sufficient for the construction of a triangle? ...