Is cos(x)+sin(x)=tan(x)+1 ?

The answer to whether cos(x)+sin(x)=tan(x)+1 is False

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prove cos(x)+sin(x)=tan(x)+1

prove

cos (x) + sin (x) = tan (x) + 1

False

Solution steps

cos (x) + sin (x) = tan (x) + 1

Show that the two sides are not equal

For

cos (x) + sin (x) = tan (x) + 1

plug in

x = 1

cos (1) + sin (1) = 1.38177 \dots

cos (1) + sin (1)

Refine to a decimal form

= 1.38177 \dots

tan (1) + 1 = 2.55740 \dots

tan (1) + 1

Refine to a decimal form

= 2.55740 \dots

The two sides are not equal

\Rightarrow False

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cos (7 a) + cos (a) = 2 cos (4 a) cos (3 a)

Is cos(x)+sin(x)=tan(x)+1 ?
The answer to whether cos(x)+sin(x)=tan(x)+1 is False