Math, asked by narayandhule637, 10 months ago

Express the following sum or difference 2cos35 cos75

Answers

Answered by lahoriji5233

3

Step-by-step explanation:

sin(35+75)-sin(35-75)

Answered by ayushhire15

11

Answer:

Step-by-step explanation:

2cos35°×cos75°=

cos(35°+75°)+cos(35°-75°)

=cos110°+cos40°

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