Question

sin square 60 degree + 2 sin square 30 degree -2 tan sqaure 45 degree​

Answer 1

Answer:

Required

1.ABCD is a parallelogram whose diagonals intersects each other at right angles.If the length of the diagonals are 16cm and 12cm then the length of AB isRequired to answer. Single choice.

(1 Point)

16cm

12cm

10cm

14cm

2.The angles of a quadrilateral are in the ratio 1:2:3:4.Then the smallest angle isRequired to answer. Single choice.

(1 Point)

72∘72∘

144∘144∘

36∘36∘

18∘18∘

3.The four angles of a pentagon are 40degree,75degree,125 degree,135degree.The measure of the fifth angle isRequired to answer. Single choice.

(1 Point)

165∘165∘

170∘170∘

160∘160∘

175∘175∘

4.The sum of the internal angles of a polygon is 10 right angles.Then the number of sides of the polygon isRequired to answer. Single choice.

(1 Point)

55

66

77

5.If one angle of a parallellogram is 65 degree,then the measure of the adjacent angle isRequired to answer. Single choice.

(1 Point)

65∘65∘

115∘115∘

25∘25∘

90∘90∘

6.Find the value ofRequired to answer. Single choice.

(1 Point)

100∘+20∘+5∘ 100∘+20∘+5∘ 

125125

2525

125125

33

7.Find the value ofRequired to answer. Single choice.

(1 Point)

(53) ×2(a5a3) ×a2

Answer 2

Question

sin square 60 degree + 2 sin square 30 degree -2 tan sqaure 45 degree

Answer

${\huge{\boxed{\mathcal{\orange {-3/4}}}}}$

Values

${\huge{\boxed{\mathcal{\red{sin60⁰=√3/2}}}}}$

${\huge{\boxed{\mathcal{\blue{sin30⁰=1/2}}}}}$

${\huge{\boxed{\mathcal{\green{tan45⁰=1}}}}}$

=(√3/2)²+2(1/2)²-2(1)²

=(3/4)+2(1/4)-2

=3/4+2/4-2

=5/4-2×4\1×4

=5-8/4

=-3/4

[Hope this helps you.../]