# Abc is an isosceles right triangle, right-angled at b. what is the value of 2 sin a × cos a?

**URL:** <https://sorumatik.co/t/abc-is-an-isosceles-right-triangle-right-angled-at-b-what-is-the-value-of-2-sin-a-x-cos-a/3540>\
**Category:** Mathematics\
**Created:** [Kasım 12, 2022, 7:43ös UTC](https://sorumatik.co/t/abc-is-an-isosceles-right-triangle-right-angled-at-b-what-is-the-value-of-2-sin-a-x-cos-a/3540 "2022-11-12T19:43:58Z")\
**Posts on this page:** 2\
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**Author:** ![Dersnotu](https://sorumatik.co/user_avatar/sorumatik.co/dersnotu/32/3037_2.png) [@Dersnotu](https://sorumatik.co/u/Dersnotu)\
**Post date:** [Kasım 12, 2022, 7:43ös UTC](https://sorumatik.co/t/abc-is-an-isosceles-right-triangle-right-angled-at-b-what-is-the-value-of-2-sin-a-x-cos-a/3540/1 "2022-11-12T19:43:58Z")

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abc is an isosceles right triangle, right-angled at b. what is the value of 2 sin a × cos a?

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**Author:** ![Ozkanhoca](https://sorumatik.co/user_avatar/sorumatik.co/ozkanhoca/32/133_2.png) [@Ozkanhoca](https://sorumatik.co/u/Ozkanhoca)\
**Post date:** [Kasım 12, 2022, 7:54ös UTC](https://sorumatik.co/t/abc-is-an-isosceles-right-triangle-right-angled-at-b-what-is-the-value-of-2-sin-a-x-cos-a/3540/2 "2022-11-12T19:54:26Z")

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m(A)=45 , m(B)=45

2.sin45.cos45=2.\frac{\sqrt{2}}{2}.\frac{\sqrt{2}}{2}=1