Maths / Introduction to Trigonometry / Trigonometric Identities

QUESTION

GIven that $\dpi{120} \fn_jvn \large sin \: \: \alpha =\frac {1}{2}and \: \: cos\: \beta =\frac {1}{2},$ then the value of $\dpi{120} \fn_jvn \large (\alpha +\beta )$ is

 OPTIONS A. $0^o$ B. $30^o$ C. $60^o$ D. $90^o$
Right Option : D

EXPLANATION
Explain TypeExplanation Content
Text

$\dpi{120} \fn_jvn \large \alpha =30$

$\dpi{120} \fn_jvn \large \beta = 60$

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