Maharashtra State BoardSSC (English Medium) 9th Standard
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Find the Values of - Geometry

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Sum

Find the values of 

cos245 °+ sin2 30°

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Solution

cos245 °+ sin2 30°

= `(1/sqrt2)^2 + (1/2)^2`

=`1/2 + 1/4`

= `[ 2 + 1]/4`

=`3/4`

Concept: Method of Using Trigonometric Table
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APPEARS IN

Balbharati Mathematics 2 Geometry 9th Standard Maharashtra State Board
Chapter 8 Trigonometry
Practice Set 8.2 | Q 2.5 | Page 112
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