Topic
Q:
5. \( \operatorname{sen} x \cdot \sec x=\tan x \)
Q:
5. \( \operatorname{sen} x \cdot \sec x=\tan x \)
Q:
5. \( \operatorname{sen} x \cdot \sec x=\tan x \)
Q:
6. \( \frac{1}{1+\operatorname{sen} y}+\frac{1}{1-\operatorname{sen} y}=2 \sec ^{2} y \)
Q:
4. \( \tan z \cdot \cos z \cdot \csc z=1 \)
Q:
6. \( \frac{1}{1+\operatorname{sen} y}+\frac{1}{1-\operatorname{sen} y}=2 \sec ^{2} y \)
Q:
De \( \mathrm{p}-\mathrm{q} \) formules
1. \( \sin p+\sin q=2 \sin \frac{1}{2}(p+q) \cdot \cos \frac{1}{2}(p-q) \)
2. \( \sin p-\sin q=2 \cos \frac{1}{2}(p+q) \cdot \sin \frac{1}{2}(p-q) \)
3. \( \cos p+\cos q=2 \cos \frac{1}{2}(p+q) \cdot \cos \frac{1}{2}(p-q) \)
4. \( \cos p-\cos q=-2 \sin \frac{1}{2}(p+q) \cdot \sin \frac{1}{2}(p-q) \)
Q:
5. \( \operatorname{sen} x \cdot \sec x=\tan x \)
Q:
Find all solutions of the equation \( 2 \cos x-1=0 \).
The answer is \( A+B k \pi \) and \( C+D k \pi \) where \( k \) is any integer, \( 0<A<C<2 \pi \), Preview,\( B=\square \) Preview,
\( A=\square \) Preview,\( D=\square \) Preview.
\( C=\square \)
Q:
Find all solutions of the equation \( \sin ^{2} x=2 \sin x+3 \).
The answer is \( A+B k \pi \) where \( k \) is any integer and \( 0<A<2 \pi \), Preview,\( B=\square \)
\( A=\square \)
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