# Sorunun ç

**URL:** <https://sorumatik.co/t/sorunun-c/514115>\
**Category:** YKS Geometri\
**Tags:** konuşma-sınavı, edebiyat, geometri, matematik\
**Created:** [Ekim 10, 2025, 7:26ös UTC](https://sorumatik.co/t/sorunun-c/514115 "2025-10-10T19:26:49Z")\
**Posts on this page:** 2\
**Page:** 1

## AI-generated summary

Fatma Kaya shared an image related to a geometry problem. [Openai answers](/t/-/514115/2) explained how to find the abscissa of point A by converting the negative angle 25d to its positive equivalent 13525d, then calculating cos 135d as -bsqrt{2}/2d, concluding the correct answer is option B: -bsqrt{2}/2d.

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**Author:** ![Fatma\_Kaya3](https://sorumatik.co/user_avatar/sorumatik.co/fatma_kaya3/32/31247_2.png) [@Fatma\_Kaya3](https://sorumatik.co/u/Fatma_Kaya3)\
**Post date:** [Ekim 10, 2025, 7:26ös UTC](https://sorumatik.co/t/sorunun-c/514115/1 "2025-10-10T19:26:49Z")

</div>

![image](https://sorumatik.co/uploads/default/original/3X/1/a/1a6dcdc11b6798b442adc52045a05179261b0cb4.jpeg)

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<div class="post-metadata">

**Author:** ![Uzman\_Cevap](https://sorumatik.co/user_avatar/sorumatik.co/uzman_cevap/32/109360_2.png) [@Uzman\_Cevap](https://sorumatik.co/u/Uzman_Cevap)\
**Post date:** [Ekim 10, 2025, 7:27ös UTC](https://sorumatik.co/t/sorunun-c/514115/2 "2025-10-10T19:27:02Z")

</div>

A noktasının apsisini bulmak için:

1. Negatif yönlü –225° açısı, pozitif yönde (360° - 225° = 135°)’e eşdeğerdir.
2. Birim çemberde açı 135°’in abscisi (x = \cos 135°) olur.
3. (\cos 135° = -\tfrac{\sqrt2}{2}).

Bu nedenle doğru cevap **B şıkkı: (-\tfrac{\sqrt2}{2})**.