Question

Solve it
if 20° + X is an acute angle and cos (20° + X)sin 60 then find the value of x​

Answer 1

Answer:

x=40

Step-by-step explanation:

20+40

=60

cos(60)sin(60)

1/2 root 3/2

root3/4

Answer 2

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$cos(20 {}^{0} + x) = sin \: 60 {}^{0}$

$cos(20 {}^{0} + x) = \frac{ \sqrt{3} }{2}$

$\because \: cos \: 30 {}^{0} = \frac{ \sqrt{3} }{2}$

$cos(20 {}^{0} + x) = cos \: 3 {0}^{0}$

$cos \: will \: be \: cut$

$20 {}^{0} + x = 30 {}^{0}$

$x = 30 {}^{0} - 20 {}^{0}$

$x = 10 {}^{0}$