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4sin square 45 degree +tan square 60 degree +cosec square 30 degree

Posted by Chetna Saini 7 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Chetna Saini 7 years, 1 month ago

Please reply sis

0Thank You

Chetna Saini 7 years, 1 month ago

Yes I done it

0Thank You

Diksha Chawla 7 years, 2 months ago

As sin 45 degree is 1/√2 so sin square 45degree is (1/√2)^2= 1/2 and its 4times become 2.......... Eq(1)

Similarly tan sqare 60 become 3 ..... Eq(2)

And cosec square 30 become 2.... Eq (3)

On adding all these equations as required in question

We get

2+3+2 = 7

3Thank You

ANSWER

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CBSE > Class 10 > Mathematics