2sin²(-2490)+tan 1410=2sin²(-330-6*360)+tan (330+3*360)=
=2sin²(-330)+tan (330)=2 sin²(30-1*360)+tan (-30)=
=2sin²(30)-tan (30)=2(1/2)²-√3/3=1/2-√3/3)=(3-2√3)/6
Answer: 2 sin²(-2490)+tan (1410)=(3-2√3)/6 (≈-0.07735...)
The resulting fractions is 14/15
<h3>Solving equations</h3>
Given the expression shown below;
1/3 + 2/5(2 - 1/2)^2
Solve the expression in bracket
1/3 + 2/5(3/2)^2
1/3 + 2/5(9/4)
Multiply the fractions
1/3 + 18/20
Find the LCM
20+36/60
56/60
28/30
14/15
Hence the resulting fractions is 14/15
Learn more on fractions here; brainly.com/question/78672
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Yes, this is a right triangle!
The ratio is identifiable as a 3:4:5 triangle, one of the ratios to tell if a triangle is a right triangle
Answer:
the perimeter of 2cm 4cm 4cm and 8cm is 18...the area is 256
Step-by-step explanation:
