cos235° + cos 55° . sin 35°

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Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Trigonometry

Question:

cos²35° + cos 55° . sin 35° + $\frac{tan 34°}{cot 56°}$ = ____________ .

Options:

Correct Answer:

Explanation:

cos²35° + cos 55° . sin 35° + $\frac{tan 34°}{cot 56°}$

cos55° = sin35°, tan34°= cot56°

= cos²35° + sin²35° + $\frac{tan34°}{tan34°}$

(cos²A + sin²A = 1)

= 1 + 1 = 2