What is the value of 3tan(45)+csc(30)cos(60) ?

The value of 3tan(45)+csc(30)cos(60) is 4

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3tan(45)+csc(30)cos(60)

3 tan (4 5^{\circ}) + csc (3 0^{\circ}) cos (6 0^{\circ})

4

Solution steps

3 tan (4 5^{\circ}) + csc (3 0^{\circ}) cos (6 0^{\circ})

Use the following trivial identity:

tan (4 5^{\circ}) = 1

tan (4 5^{\circ})

tan (x)

periodicity table with

18 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} tan (x) 0 \frac{3}{3} 13 \pm \infty - 3 - 1 - \frac{3}{3}

= 1

Use the following trivial identity:

csc (3 0^{\circ}) = 2

csc (3 0^{\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

Use the following trivial identity:

cos (6 0^{\circ}) = \frac{1}{2}

cos (6 0^{\circ})

cos (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} cos (x) 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} 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} cos (x) - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2} 0 \frac{1}{2} \frac{2}{2} \frac{3}{2}

= \frac{1}{2}

= 3 \cdot 1 + 2 \cdot \frac{1}{2}

Simplify

3 \cdot 1 + 2 \cdot \frac{1}{2} : 4

3 \cdot 1 + 2 \cdot \frac{1}{2}

3 \cdot 1 = 3

3 \cdot 1

Multiply the numbers:

3 \cdot 1 = 3

= 3

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

2 \cdot \frac{1}{2}

Multiply fractions:

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

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

Cancel the common factor:

2

= 1

= 3 + 1

Add the numbers:

3 + 1 = 4

= 4

= 4

\frac{sin ( 4 7 ^{\circ} ) + cos ( 1 7 ^{\circ} )}{cos ( 4 7 ^{\circ} ) + sin ( 1 7 ^{\circ} )}

10 cos (7 5^{\circ}) cos (1 5^{\circ})

cos^{2} (\frac{5 π}{6}) - 2 sin (\frac{5 π}{6})

- sin (27 0^{\circ})

arcsin (sin (- \frac{7 π}{4}))

What is the value of 3tan(45)+csc(30)cos(60) ?
The value of 3tan(45)+csc(30)cos(60) is 4