# Find the Values of - Geometry

Sum

Find the values of

cos245 °+ sin2 30°

#### 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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