en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

csc^2(45)

Solution

csc^{2} (4 5^{\circ})

Solution

2

Solution steps

csc^{2} (4 5^{\circ})

Use the following trivial identity:

csc (4 5^{\circ}) = 2

csc (4 5^{\circ})

csc (x)

periodicity table with

36 0^{\circ} n

cycle:

x 0 3 0^{\circ} 4 5^{\circ} 6 0^{\circ} 9 0^{\circ} 12 0^{\circ} 13 5^{\circ} 15 0^{\circ} csc (x) Undefiend 22 \frac{2 3}{3} 1 \frac{2 3}{3} 22 x 18 0^{\circ} 21 0^{\circ} 22 5^{\circ} 24 0^{\circ} 27 0^{\circ} 30 0^{\circ} 31 5^{\circ} 33 0^{\circ} csc (x) Undefiend - 2 - 2 - \frac{2 3}{3} - 1 - \frac{2 3}{3} - 2 - 2

= 2

= (2)^{2}

Simplify

(2)^{2} : 2

(2)^{2}

Apply radical rule:

a = a^{\frac{1}{2}}

= (2^{\frac{1}{2}})^{2}

Apply exponent rule:

(a^{b})^{c} = a^{b c}

= 2^{\frac{1}{2} \cdot 2}

\frac{1}{2} \cdot 2 = 1

\frac{1}{2} \cdot 2

Multiply fractions:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{1 \cdot 2}{2}

Cancel the common factor:

2

= 1

= 2

= 2

Popular Examples

\frac{8}{sin ( 6 0 ^{\circ} )}

(tan(80)+tan(40))/(1-tan(80)tan(40))

\frac{tan ( 8 0 ^{\circ} ) + tan ( 4 0 ^{\circ} )}{1 - tan ( 8 0 ^{\circ} ) tan ( 4 0 ^{\circ} )}

2 cos (- 1)

(tan(60)-tan(30))/(1+tan(60)*tan(30))

\frac{tan ( 6 0 ^{\circ} ) - tan ( 3 0 ^{\circ} )}{1 + tan ( 6 0 ^{\circ} ) \cdot tan ( 3 0 ^{\circ} )}

arctan (1.333)

Frequently Asked Questions (FAQ)

What is the value of csc^2(45) ?
The value of csc^2(45) is 2