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gregori [183]
3 years ago
6

If cscθ = 1 1/4, cosθ = a. 3/4 b. 1 2/3 c. 3/5 d. 4/5

Mathematics
1 answer:
madam [21]3 years ago
4 0

Answer:

we have

cscθ =1 \frac{1}{4}

\frac{h}{p}=\frac{5}{4}

h=5

p=4

b=\sqrt{11 {}^{2}  - 4 {}^{2} }

b=3

now

cosθ=\frac{b}{h}=\frac{3}{5}

<u>c. 3/5</u>

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===================================

Work Shown:

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\qquad \qquad  \bf \huge\star \:  \:  \large{  \underline{Answer} }  \huge \:  \: \star

  • Equivalent value = -28

\textsf{  \underline{\underline{Steps to solve the problem} }:}

\qquad❖ \:  \sf \: - 2( {b}^{2}  - 5c)

( put the values )

\qquad❖ \:  \sf \: - 2 \{( - 3) {}^{2}  - 5( - 1) \}

\qquad❖ \:  \sf \: - 2(9 -  (- 5))

\qquad❖ \:  \sf \: - 2(9 + 5)

\qquad❖ \:  \sf \: - 2 \times 14

\qquad❖ \:  \sf \: - 28

\qquad \large \sf {Conclusion}  :

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