sin^2(45^{\circ})+cos^2(30^{\circ})

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`x`²	`x`^□	log_□	√☐	^□√☐	≤	≥	□□	·	÷	`x`^◦	π
(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

☐²

x^☐

√☐

^□√☐

□□

log_□

θ

∞

∫

ddx

≥	≤	·	÷	`x`^◦	(☐)	\|☐\|	(`f` ◦ `g`)	`f`(`x`)	ln	`e`^☐
(☐)^′	∂∂`x`	∫_□^□	lim	∑	sin	cos	tan	cot	csc	sec

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sin²(45^◦)+cos²(30^◦)

Solution

Decimal

1.25

Mixed Number

114

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Solution steps

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sin²(45^◦)+cos²(30^◦)

Use the following trivial identity: sin(45^◦)=√22

Use the following trivial identity: cos(30^◦)=√32

=(√22 )²+(√32 )²

Simplify (√22 )²+(√32 )²: 54

=54

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