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tristenmathews
06.07.2019 •
Mathematics
Fill in the blanks for the letters with the missing reason in the flow proof
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Ответ:
m<5=40.
a. Given.
m<2 = 140 degrees
b. given
<5 and <2 are supplementary angles
c. Sum of <5 and <2 is 180 degree.
< 5 and <2 are same side-interior angles
d. Same side-interior angles are called Consecutive Interior Angles.
a||b
e. When Consecutive Interior Angles are supplementary (sum 180) the linear are parallel.
Ответ:
27
Step-by-step explanation:
note that tanx cotx = tanx ×
= 1
Given
tanx - cotx = 5 ( square both sides )
(tanx - cotx)² = 5² = 25 ← expand left side using FOIL
tan²x - 2tanxcotx + cot²x = 25
tan²x - 2 + cot²x = 25 ( add 2 to both sides )
tan²x + cot²x = 27