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Sagot :
Answer:
16/7sin(2x)
Step-by-step explanation:
-8×1/cos(x)×⅐×1/sin(x)
-8/7cos(x)sin(x)
-8/⁷/²×sin(2x)
-8/7sin(2x)/2
16/7sin(2x)
Answer:
- [tex]\frac{8}{7}[/tex] tanx
Step-by-step explanation:
Using the identities
secx = [tex]\frac{1}{cosx}[/tex] , cscx = [tex]\frac{1}{sinx}[/tex] , tanx = [tex]\frac{sinx}{cosx}[/tex]
Given
[tex]\frac{8secx}{-7cscx}[/tex]
= [tex]\frac{\frac{8}{cosx} }{\frac{-7}{sinx} }[/tex] ← multiply numerator/ denominator by sinx
= [tex]\frac{8\frac{sinx}{cosx} }{-7}[/tex]
= - [tex]\frac{8}{7}[/tex] tanx
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