Math, asked by reddyadithya98066, 3 months ago

. Find the value of sin45º. cos30° + cos 45º.sin30°​

Answers

Answered by keenjal
1

 \sin45 =  \frac{1}{ \sqrt{2} }   \\  \\  \cos30 =  \frac{ \sqrt{3} }{2}  \\  \\  \cos45 =  \frac{1}{ \sqrt{2} }  \\  \\  \sin30 =  \frac{1}{2}  \\  \\ now \: we \: can \: put \: this \: values \: in \: the \: question \:  \\ so \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \\  \\  \sin45. \cos30 +  \cos45. \sin30  \\  \\  \frac{1}{ \sqrt{2} }  \times  \frac{ \sqrt{3} }{2}  +  \frac{1}{ \sqrt{2} }  \times  \frac{1}{2}  \\  \\   \frac{ \sqrt{3} }{2 \sqrt{2} }   +  \frac{1}{2 \sqrt{2} }  \\  \\  \frac{ \sqrt{3}  + 1}{ 2\sqrt{2} }

i hope this will be help you

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