How do you use a calculator to approximate $tan^-1(7/2)$ ?

Question

5398 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-07-26T03:53:08

$" "$
$color(red)(tan^(-1)(7/2)~~ 74.05^@$

$" "$
Calculator used: TI-84 Plus Silver Edition.

$color(green)(Step.1$

Turn the calculator ON.

$color(green)(Step.2$

Set the MODE to Degree.

$color(green)(Step.3$

Press 2ND Key and tan Key.

$color(green)(Step.4$

Type $color(red)(7/2$

$color(green)(Step.5$

The value $color(blue)(74.0546041$ is displayed as the result in degree.

Alternative:

$color(green)(Step.1, Step.3 and Step.4$ are the same.

$color(green)(Step.2$

Set the MODE to Radian.

$color(green)(Step.5$

The value $color(blue)(1.292496668$ is displayed as the result in radian mode.

Hope you find this process useful.

How do you use a calculator to approximate tan^-1(7/2)tan^-1(7/2)?