Question

cos∅ = 1/2, sinФ= 1/2, Then find the value of ∅+Ф.

Answer 1

$hey \: frnd \: ....... \\ we \: know \: that \: \\ \cos( \alpha ) = \frac{1}{2} \\ \cos( \alpha ) = cos \: 60 \\ \alpha = 60 \\ now... \\ \sin( \beta ) = \frac{1}{2} \\ \sin( \beta ) = \sin(30) \\ \beta = 30 \\ now.... \\ \alpha + \beta = 60 + 30 = 90$
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Answer 2

$\large\mathsf{Hoy !!}$
$<i>$
Given :

cos∅ = 1 / 2

cos∅ = cos 30°

•°•

∅ = 30°

Also,

sinФ = 1 / 2

sinФ = sin 60°

Ф = 60°

Now,

∅ + Ф = 30° + 60° = 90°

Hence,

∅ + Ф = 90°

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