Math, asked by roasankumar23, 1 month ago

the value of 2 sin^2 30 degree - 3 cos^2 45 degree + tan^2 60 degree + 3 sin^2 90 degree is

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Answered by saiaharannayak
0

Answer:

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Step-by-step explanation:

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Class 10

>>Maths

>>Introduction to Trigonometry

>>Solving Problems : Using Trigonometric Tables

>>Evaluate each of the follow...

Question

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Evaluate each of the following :

2sin

2

30

−3cos

2

45

+tan

2

60

Medium

Solution

verified

Verified by Toppr

Given 2sin

2

30

−3cos

2

45

+tan

2

60

=2(

2

1

)

2

−3(

2

1

)

2

+(

3

)

2

[∵cos45

=

2

1

,sin30

=

2

1

,tan60

=

3

]

=

4

2

2

3

+3

=

2

1

2

3

+

2

3×2

=

2

1

2

3

+

2

6

=

2

4

=2

Hence, 2sin

2

30

−3cos

2

45

+tan

2

60

=2

Answered by lucifer2006
0

Answer:

Here is your answer

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